A.P.ShivaPrasad - Department of Electrical …ece.iisc.ernet.in/csd/brochure report of professors of...

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1 of 1 6/20/2005 12:33 PM

A.P.ShivaPrasadProfessor

Department of Electrical Communication EngineeringOffice Phone: (+91)-80 22932656 or (+91)-80-2293 2656

Fax: (+91)-80 23600563Email: [email protected]

Biography

Ph.D. (IISc) 1972, M.E. (IISc) 1967, B.E. (IISc) 1965, B.Sc. (Mysore) 1962.

Research Interests

Devices, Circuits, Instrumentation and Communication.

Research Highlights

Statistical design techniques have been developed for yield and variability optimization of CMOSanalog integrated circuits. Low-power and low-voltage folding and interpolating ADCs have beendesigned and developed for high-speed applications. Efficient PSK spectrum shaping techniqueshave been developed and evaluated for space communication applications.

Selected Journal Papers

D.Venkata Ramana, S.Pal and A.P.Shivaprasad, “ A new pulse shaping technique to reduce spectralside lobe level of QPSK spectrum for space communications”, IETE Journal of Research, Vol. 50,No. 4, Jul-Aug. 2004, pp. 291-295, Jul 2004D. Venkata Ramana, S. Pal and A. P. Shivaprasad, “Simulation and realization of base band pulseshaping filter for BPSK modulator”, Journal of RF Design, Air & Space Electronics, Apr. 2004, pp.42-48. , Apr 2004D. Venkata Ramana, S. Pal and A. P. Shivaprasad, “Pulse-shaping techniques for SpaceCommunications”, Journal of Space Technology, Vol. 24, No. 2, pp. 95-101, Apr 2004Suresh Nalluri and A. P. Shivaprasad, “Response methodology based design approach for yieldenhancement of analog integrated circuits”, Proc. Progress in VLSI Design and Test, Mysore,26-28 Aug. 2004, Elite Publishing House Pvt. Ltd., New Delhi, pp. 339-348, Aug 2004

Selected Conference Papers

S. V. Gopalaiah, A. P. Shivaprasad and S. K. Panigrahi, “Design of low voltage low power CMOSOP-AMPS with rail-to-rail input/output swing”, Proc. of the International Conference on VLSIDesign, Mumbai, Jan. 5-9, 2004, pp. 57-61, Jan2004S. V. Gopalaiah and A. P. Shivaprasad, “Low Voltage CMOS op-amp with Rail-to-RailInput/Output Swing”, Proc. of DELTA 2004: Second IEEE International Workshop on ElectronicDesign, Test and Applications, Perth-Australia, Jan. 28-30, 2004, pp. 349-354., Jan2004D. Venkata Ramana, A. P. Shivaprasad and S. Pal, “New base band pulse shaping technique andnew window function for space communications”, Proc. of the Tenth National Conference onCommunications-NCC2004, Bangalore, Jan. 30 – Feb. 1, 2004, pp. 434-438., Jan2004

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1 of 1 6/20/2005 12:35 PM

A.SelvarajanProfessor



Biography

* Master of Science, 1964, Annamalai University * Ph.D, 1969, Indian Institute of Science. * Joinedthe ECE Department of IISc in Jan 1972 as lecturer and is currently professor of Photonics. * Hasbeen a visiting Scientist at Uppsala University Sweden (1969-70), University of Arizona (1977-78),Technical University of Denmark ( May-July 1986), University College, London (May-July 1987),International Centre for Theoretical Physics, Trieste (May-June 1991). and NGEE Ann Polytechnic,Singapore (May-June, 1996, May-June, 1998).

Research Interests

Integrated Optics and Photonic circuits; Optical communications - photonic switching, CDMA;Microwave Photonics; Fiber-optic sensors, MEMS, MOEMS, and smart structures.

Sponsored Projects

Fiber-optic gyroscope (DRDO);, , Jan 1998 - Jan 1998


Prasant Kumar Pattnaik, T.Srinivas, A.Selvarajan,"Noise in Micro-Opto-Electro-Mechanical(MOEM) Sensors”, Proceedings of Seventh International Conference on Optoelectronics, FiberOptics and Photonics. 9-11 December 2004, Cochin, India, Dec2004R. Fazludeen, Samit Barai, P.K Patnaik, T.Srinivas and A.Selvarajan, “A Novel Technique ToCharacterise Propagation Loss of Optical Waveguides”, Proceedings of Seventh InternationalConference on Optoelectronics, Fiber Optics and Photonics. 9-11 December 2004, Cochin, India.,Dec2004Prasant Kumar Pattnaik, T.Srinivas, A.Selvarajan, “Analysis of Integrated Optics based MEMSDevices”, Proceedings of Seventh International Conference on Optoelectronics, Fiber Optics andPhotonics. 9-11 December 2004, Cochin, India, Dec2004Naren Naik, A.Selvarajan, R.M.Vasu, "A New Perturbation Solution to the Scalar wave Equation",J.Indian Inst. Sci., vol.76, pp.213-221, Mar1996





1 of 1 6/20/2005 12:36 PM

Anandi GiridharanScientific Officer

Department of Electrical Communication EngineeringOffice Phone: (+91)-80 2282

Fax: (+91)-80 23600563 or (+91)-80-2293 23600683Email: [email protected]

Biography

Bachelor's Degree in Electrical Engineering from Bangalore University, 1988; Master of Science(Engg.) from Indian Institute of Science, Bangalore, 2004 * Tech. Officer Gr II, ECE Department,(IISc.), 2003--- * Tech. Officer Gr I, ECE Department, (IISc.), 1996-2003 * Scientific Asst., ECEDepartment, (IISc.), 1990-96;

Research Interests

Security Management Network Management


Anandi Giridharan & P.Venkataram, "A causal model based subject domain creation for aWeb-based Education", NSEE 2005, Bangalore, Feb, 2005., Feb2005P.Venkataram, R.Rajavelsamy & Anandi Girdharan, "A method of designing Web-based EOD",NCC 2003, Chennai, Jan 31 to Feb 2, 2003, Feb2003Anandi Giridharan & P. Venkataram, "A Design of Subject Model for Web-based EducationSystem" , IEEE HSNMC, Jeju, Korea , July 3-5, 2002, Jul2002Anandi Giridharan & P. Venkataram, "A method of Secured Co-authoring System Developmentover Wireless Network" Proceedings of ISWCM Symposium 1998, New Delhi, Sept. 17-18,p212-216, 1998., Sep1998





1 of 2 6/20/2005 12:37 PM

Anurag KumarProfessor



Biography

Education: Ph.D. Electrical Engg, Cornell University, 1981; B.Tech. Electrical Engg., I.I.T.Kanpur, 1977. Professional Career: Professor, ECE Department, IISc, 1997 - present; AssociateProfessor, ECE Department, IISc, 1991-1997; Assistant Professor, ECE Department, IISc,1988-1991; Member Technical Staff, AT&T Bell Laboratories, Homdel, New Jersey, 1981-1988.Visiting Positions: Coordinated Sciences Lab, Univ. of Illinois, Urbana-Champaign, USA, Summer2003; WINLAB, Rutgers Univ., N.J., USA, May - Nov 1996.

Awards and Affiliations

IETE's SVC Aiya Memorial AwardIETE's CDIL AwardFellow of the Indian National Academy of Engineering

Research Interests

Communication Networking: Modeling, performance analysis, optimisation and control of wirelessnetworks. In particular, modeling of IEEE 802.11 wireless LANs, quality of service in wirelessLANs; self organisation, self tuning, and distributed computing in wireless sensor networks; wirelessad-hoc internets.

Research Highlights

We have developed a generalized fixed point approach for the saturation throughput analysis ofIEEE 802.11 wireless local area networks. Our analysis handles the new quality of servicemechanisms, and also the possibility of packet capture. We have also extended the analysis to thecase of two overlapping cells. We have developed a new approach to formulating the problem ofoptimal association of stations and access points in a wireless local area network. In the area ofad-hoc wireless sensor networks, we have developed a complete architecture for self organizationand localization. In addition we have studied the time and energy complexity of distributedcomputation on ad- hoc sensor networks.

Sponsored Projects

Research in New Techniques for Wireless Networks, IFCPAR, Jun 2003 - Mar 2006QoS Algorithms for IEEE 802.11 WLANS, Intel, Jun 2005 - May 2005Performance Evaluation of IEEE 802.15.4 Networks for Industrial Measurement and Control,Honeywell, Jan 2005 - Dec 2005

Books

Communication Networking: "An Analytical Approach, Anurag Kumar, D.Manjunath, and Joy





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Kuri, published by Morgan Kaufmann Publishers (a division of Elsevier Science) in the MorganKaufman Networking Series", 929 pages. published in 2004


Arzad Kherani and Anurag Kumar, "Long range dependence of network traffic and the closedbehaviour of buffers under adaptive window control," Performance Evaluation (an Elsevier Sciencejournal), special issue on Long Range Dependence and Heavy Tail Distributions., Jul2005Aditya Karnik and Anurag Kumar, "Performance of TCP Congestion Control with Explicit RateFeedback," ACM/IEEE Transactions on Networking, Feb2005Arzad Kherani and Anurag Kumar, "The Lightening Effect of Adaptive Window Control," IEEECommunications Letters., Jun 2003Sanjay Shakkotai and Anurag Kumar, Aditya Karnik and Ajit Anvekar, ``TCP over End-to-EndABR: TCP Performance with End-to-End Rate Control and Stochastic Available Capacity,''IEEE/ACM Transactions on Networking., Aug 2001Santosh P. Abraham and Anurag Kumar, ``A New Approach for Asynchronous Distributed RateControl of Elastic Sessions in Integrated Packet Networks,'' IEEE/ACM Transactions onNetworking., May 2001K. Maheshwari and Anurag Kumar, ``Performance Analysis of Microcellisation for Supporting TwoMobility Classes in Cellular Wireless Networks,'' IEEE Transactions on Vehicular Technology.,May 2000Anurag Kumar, ``Comparative Performance Analysis of Versions of TCP in a Local Network with aLossy Link,'' IEEE/ACM Transactions on Networking., Aug 1998Joy Kuri and Anurag Kumar, ``On the Optimal Control of Arrivals to a Single Queue with ArbitraryFeedback Delay,'' Queueing Systems: Theory and Applications (QUESTA)., Jan 1997

Selected Book Chapters

Anurag Kumar and Aditya Karnik, "Performance Analysis ofWireless Ad Hoc Networks," TheHandbook of Ad Hoc Networks,CRC Press. published in 2002


Venkatesh Ramaiyan, Anurag Kumar, and Eitan Altman, "Fixed Point Analysis of Single Cell IEEE802.11e WLANs: Uniqueness, Multistability and Throughput Differentiation," Proceedings of ACMSigmetrics., Jun2005Anurag Kumar, Eitan Altman, Daniele Miorandi and Munish Goyal, "New Insights from a FixedPoint Analysis of Single Cell IEEE 802.11 WLANs," Proceedings of the IEEE Infocom., Mar2005Nilesh Khude, Anurag Kumar and Aditya Karnik, "Time and Energy Complexity of DistributedComputation in Wireless Sensor Networks," Proceedings of the IEEE Infocom., Mar2005Manoj Panda, Anurag Kumar, and S.H. Srinivasan, "Saturation Throughput Analysis of a System ofInterfering IEEE 802.11 WLANs," Proceedings of WOWMOM., Jun2005





1 of 2 6/20/2005 12:38 PM

B.S.RajanProfessor



Biography

B.Sundar Rajan received B.Sc. degree in Mathematics from Madras University; B.Tech. degreefrom Madras Institute of Technology; M.Tech. and Ph.D. degrees from I.I.T. Kanpur. After being afaculty in the Department of Electrical Engineering, I.I.T.Delhi, from 1990 to 1997, joinedElectrical Communication Engineering Department of IISc Bangalore, where presently he isAssociate Professor. His primary research interests are in Error Control Coding, Modulation Theoryand Cryptology. Dr.Rajan is a Senior Member of IEEE and a member of Americal MathematicalSociety and IETE.


Awarded IETE Pune Center’s SVC Aiya memorial award for Telecom Education for the year 2004.Senior Member, IEEEMember, American Mathematical SocietyMember IETE

Research Interests

Current research areas are structure of Group codes, coded modulation for fading channels, Trellisconstruction for nonlinear codes, Iterative decoding techniques and bounds for Euclidean Spacecodes.

Research Highlights

Block coded modulation schemes using codes over dihedral and dicycle groups were studied usingSymmetric and Asymetric PSK signal sets. Superiority of Asymmetric PSK over Symmetric PSKsingal sets was demonstrated when used with codes in Rayleigh, Rician and shadowed Rician fadingchannels. Well known Gilbert-Varshamov and Elias bounds for Hamming space codes wereextended to Euclidean space codes over uniform signal sets. Achieved construction of severalSpace-Time-Frequency codes for applications in wireless mobile communication and OFDMsystems including IEEE standards 802.11 and 802.16.

Sponsored Projects

Transistor Mismatch in the Deep Submicron Technology, DST, Oct 2001 - Oct 2005Capacitance Sensing Integrated Circuit Chip, ISRO, Apr 2003 - Apr 2005National MEMS Design Centre, NPSM, Oct 2001 - Oct 2005Upgradation of MEMS Design Centre, NPSM, Oct 2003 - Oct 2005


Md. Zafar Ali Khan and B. Sundar Rajan, ``A Generalization of some results on Orthogonal





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Designs for STBCs,'' IEEE Transactions on Information Theory, Vol.50, No.1, pp.218-219,Jan2004Kiran T. and B. Sundar Rajan, ``Consta-Abelian Codes Over Galois Rings,'' IEEE Transactions onInformation Theory, Vol.50, No.2,pp.367-380, Feb2004Bikash Kumar Dey and B. Sundar Rajan, ``Affine Invariant Extended Cyclic Codes over GaloisRings,'' IEEE Transactions on Information Theory, Vol.50, No.4, pp.691-698, Apr2004


Kiran T and B. Sundar Rajan, `` High-rate, Information-Lossless Linear Dispersion STBCs fromGroup Algebra,'' Proceedings of IEEE Global Telecommunications Conference (GLOBECOM2004), Communication Theory Symposium, Dallas, Texas, 29 Nov-3 , Dec2004Kiran. T and B.Sundar Rajan, ``High-rate Full-rank Space-Time Block Codes from CayleyAlgebra,'' Proceedings of International Conference on Signal Processing and Communications(SPCOM 2004), Dec. 11-14, 2004, IISc Bangalore, Dec2004Petros Elia, P.Vijay Kumar, Sameer A.Pawar, K.Raj Kumar, B.Sundar Rajan and Hsiao-feng(Francis) Lu, ``Diversity-Multiplexing tradeoff Analysis of a few Algebraic Space-TimeConstructions,'' Proceedings of 42nd Annual Allerton Conference on Communications, Control andComputing , Dec2004V. Shashidhar, B. Sundar Rajan and P.Vijay Kumar, ``Asymptotic-Information-Lossless Designsand Diversity-Multiplexing tradeoff,'' Proceedings of IEEE Global Telecommunications Conference(GLOBECOM 2004), Communication Theory Symposium, Dallas, Texas, 29 Nov-3 , Dec2004





1 of 1 6/20/2005 12:39 PM

Bharadwaj AmruturAssistant Professor


Fax: (+91)-80 2360-0563Email: [email protected]

Biography

Letters PhD EE, Stanford 1999, MS EE Stanford 1994, B.Tech CSE IIT Mumbai 1990.Professional Experience: R & D experience with Bell Labs, Murray Hill, NJ Agilent Labs, PaloAlto, CA Greenfield Networks, Sunnyvale, CA.

Research Interests

VLSI Circuits and Systems 1)Circuit techniques for Memories, IOs, Analog blocks and RF in deepsubmicron processes. 2)Formal Design Methodology and Verification Computer Architecture.3)Large scale Chip Multi Processor architectures; Networking 1)Hardware assists for algorithms forspeed and power; Emerging Technologies 1)Applications of new devices and MEMs for energyconversion, displays, sensors Bioengineering 2) Neural circuits modeling and interfaces. 3)StudyBiological and Biochemical systems for applications to future ultra large scale integrated systems.


“Fast Low Power Decoders for RAMs”,B. S. Amrutur, M. A. Horowitz, IEEE Journal of SolidState Circuits, October 2001, vol. 36, No. 10, pp. 1506-1515., Oct 2004“Speed and power scaling of SRAMs”, B. S. Amrutur, M. A. Horowitz, IEEE Journal of SolidState Circuits, Feb 2000, vol. 35, no. 2. pp. 175-185, Feb 2000“Low Power SRAM design using Half-Swing Pulse Mode Circuits”, T. Mori, B. Amrutur, K. Mai,R. Ho, B. Wilburn, M. Horowitz, I. Fukushi, T. Izawa, S. Mitarai IEEE Journal of Solid StateCircuits, Nov. 1998, pp. 1659-1671., Nov 1998“A Replica Technique for Wordline and Sense Control in Low Power SRAMs”, B. S. Amrutur, M.A. Horowitz, IEEE Journal of Solid State Circuits, Aug. 1998, pp. 1208-1219. , Aug1998


“Applications of On-Chip Samplers for Test and Measurement of Integrated Circuits”, R. Ho, B.Amrutur, K. Mai, B. Wilburn, T. Mori, M. Horowitz, IEEE Symposium of VLSI Circuits, Jun1998“A 1V 0.9mW 2kx16 SRAM”, T. Mori, B. Amrutur, K. Mai, M. Horowitz, I. Fukushi, T. Izawa, S.Mitarai, International Solid State Circuits Conference, Digest of Technical Papers, Feb1998“Optimization of hybrid JJ/CMOS memory operating temperatures”, D. Gupta, B. Amrutur, E.Terzioglu, U. Ghoshal, M. Beasley, M. Horowitz, Applied Superconductivity Conference,pages3307-3310, Aug1996“Techniques to Reduce Power in Fast Wide Memories”, B. S. Amrutur, M. A. Horowitz,IE,EESymposium on Low Power Electronics, May1994





1 of 1 6/20/2005 12:40 PM

ChockalingamAssociate Professor

Department of Electrical Communication EngineeringOffice Phone: (+91)-80 23601312

Fax: (+91)-80Email: [email protected]





1 of 1 6/20/2005 12:41 PM

D.B.GhareProfessor



Biography

Principal Research Scientist Ph.D. (1967) Pune University. Principal Research Scientist, 1985 - tilldate, IISc; Senior Scientific Officer, 1970 - 1985, IISc; Research Associate, 1968 - 1970, IISc; AsstEngr, 1967 - 1968, Semiconductors Ltd. Pune; Senior Research Fellow, 1967, N.C.L. Pune; JuniorResearch Fellow, 1963 - 1967, N.C.L. Pune.


Best Paper Award and Gold Medal for the paper `Increasing Creapage Distance of High VoltageInsulators by Composite Designing' by Central Board of Irrigation and Power, 1977

Research Interests

Past Activities (1963 - 1980): Silicon P-N junction photovoltaic devices, Epitaxial growth of thinsilicon films, Covalent and oxide (hopping) semiconducting materials, Dielectric, Para-ferroelectric,Ferromagnetic materials and devices, Thermistors, Varistors, Electrets, Cermets, High wattage highvoltage linear and nonlinear resistors, Semiconducting glazes and paints for high voltage insulators,Design of improved performance high voltage insulators using composite materials. CurrentActivities (1980 - 1993): Hybrid microelectronics compatible transducers technology,Microelectronic miniature sensors, Smart / intelligent sensors, Sensor signal processing conditioningcircuits, MPPPHT (Microprocessor Programmed Periodic Pulsed Heating Technique) based sensortechnology, Thick / thin film hybrid microelectronics materials, technology and devices, Compositematerials for design of electronic devices.

Research Highlights

Possibility of Utilization of Molecular Motors for BANC Based Biomedical Nanorobotics wasstudied.


Re-Organisation of BANC Units into Miniature Implantable Biomedical Sturctures, Dec2003Towards a Wireless Monitoring and Control System for BANC based Biomedical Robotic MEMS /NEMS SOPs, Nov2001NEMS Based "BANCs", the Micro_Robotic Aids & associated Instrumentation System for BioMedical Micro Analytical Therapeutic Surgical Operations, Dec2001Simulation of QW / QD based Photonic Emitting and Detector type Devices Using Semi-empiricalMathematical Modelling., Oct2000





1 of 1 6/20/2005 12:42 PM

D.Narayana Dutt





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E.S.ShivaleelaScientific Officer



Research Interests

Interested in optical communications and Integrated optics.

Research Highlights

Design of two dimensional (Single pulse per row and multiple pulses per row ) codes for fiber-opticCDMA networks.


E.S.Shivaleela, Kumar N Sivarajan and A.Selvarajan, Design of a new family of codes forfiber-optic CDMA networks, Journal of lightwave Technology, Apr1998





1 of 2 6/20/2005 12:43 PM

G.V.AnandProfessor



Biography

Ph.D. Electrical Communication Engg.,IISc.,1971; M.Sc. Physics, Osmania University, 1964; B.Sc,Osmania University, 1962; Professor, ECE Department, IISc, 1994; Associate Professor, ECEDepartment, IISc,1981-1994; Assistant Professor, ECE Department, IISc,1974-1981; Lecturer,ECE Department, IISc, 1969-1974; Commonwealth Acadamic Staff Fellow, Department ofElectronics & Electrical Engg., University College London, 1978-1979; Visiting Scientist, NavalPhysical & Oceanographic Laboratory, Kochi, 1996-1997.


Fellow, Indian Acdemy of Sciences.Fellow, Indian National Academy of EngineeringFellow, Institution of Electronics & Telecommunication Engineers.Fellow, Acoustical Society of India.

Research Interests

1) Ocean acoustics 2) Signal processing 3) Fractal image comression

Research Highlights

(i) Nonlinear detectors based on quantizers have been designed for detection of deterministic /random signals in non-Gaussian noise. These detectors, which are based on the phenomenon ofstochastic resonance (SR), have been shown to outperform optimal linear detectors. A combinationof SR quantization and wavelet packet transform has been used to design detectors of transientsignals in non-Gaussian noise. SR quantization has also been used to enhance the performance ofarray processors used for direction-of-arrival estimation and source localization in the ocean. ( ii ) Apreprocessing technique called Wavelet Array De noising has been developed for improving thelow-SNR performance of array processors used for direction-of-arrival estimation and sourcelocalization in the ocean.

Sponsored Projects

Source localization in ocean by wavelet domain filtering and matched field processing,DRDO, , Oct2001 - Sep 2003Detection of acoustic and non-acoustic sources in ocean through optical imaging, NPOL, , Apr2001 - Sep 2002Signal detection in the ocean using stochastic resonance, NPOL, , Nov 2002 - Apr 2002


S. Lakshmipathi and G.V.Anand,"Subspace intersection method of high-resolution bearing





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estimation in shallow ocean", Signal Processing, Vol. 84, pp. 1367-1384 , Nov 2004Aditya A.Saha and G.V.Anand, " Design of detectors based on stochastic resonance", SignalProcessing, Vol.83, pp 1193 - 1212 (2003)., Apr 2003


P.R.Bhat, D. Rousseau and G.V.Anand, "Improved Bayesian estimation of weak signals innon-Gaussian noise by optimal quantization", SPCOM 2004, Bangalore, India, Dec2004R.Sathish and G.V.Anand, "Improved localization of underwater acoustic sources by wavelet arraydenoising",Conference on Undersea Defence Technology UDT Europe Nice, France , Jul2004R. Sathish and G.V.Anand, "Spatial wavelet packet denoising for improved DOA estimation", IEEESignal Processing Society Workshop MLSP, Sao Luis, Brazil, Sep2004Aparna Dutta and G.V.Anand , "Detection of transient signals by wavelet packet transform andstochastic resonance", IEEE Region 10 Conference TENCON 2004, Chiang Mai, Thailand,Nov2004





1 of 1 6/20/2005 12:44 PM

K.Elizabeth Rani





1 of 2 6/20/2005 12:45 PM

K.J.VinoyAssistant Professor



Biography

Academics * Ph.D. Pennsylvania State University, USA, 2002; * M.Tech. Cochin University ofScience and Technology, Kochi, 1993; * B.Tech. College of Engineering, Trivandrum, 1990;Positions Held * Assistant Professor, Electrical Communication Engineering, IISc, Sept. 2003 ; *Post Doctoral Researcher, Pennsylvania State University, USA, Sept. 2002 - Aug. 2003; ResearchAssistant, Pennsylvania State University, USA, Jan. 1999 - Aug. 2002; * Scientist, NationalAerospace Laboratories, Bangalore, Oct. 1996 - Dec. 1998; JRF/SRF, National AerospaceLaboratories, Bangalore, Feb. 1995 - Sept. 1996; Post Graduate Trainee National AerospaceLaboratories, Bangalore, Feb. 1994 - Feb. 1995; * M.Tech Student Trainee, Electronics and RadarDevelopment Establishment (LRDE), Bangalore, Dec. 1992 - May 1993.

Research Highlights

The Microwave Laboratory in the department has been engaged in research in several current areasof microwave engineering. These include the design of micro machined components for microwaveapplications, micro machined antennas, fractal antennas, miniaturized planar components such asfilter, etc. Capabilities for circuit level and planar electromagnetic analysis have been set up in theLab. recently. A vector network analyzer for characterization of microwave systems andcomponents up to 50GHz has been procured. Further enhancements to the measurement facility iscurrently underway. Three M.E. (Telecom.) students are being guided for their project works. Inaddition, one M.Tech. project of a student from the Instrumentation department has been completedusing facilities acquired through these funds.Two research students have joined us recently.


K.J. Vinoy, K.A. Jose and V.K. Varadan, "Generalized design of multi-resonant dipole antennasusing Koch curves, "Applied Computational Electromagnetics" Society Journal, vol 19, pp. 22-31,2004., Jan2004K.J. Vinoy, K.A. Jose and V.K. Varadan, "Impact of fractal dimension in the design ofmulti-resonant fractal antennas," Fractals, vol. 12, pp.55-66,2004., Jan2004


I.Paul, K.J. Vinoy, and S. Mohan, “Improved design of a micromachined phase shifter for millimeterwave phased array applications,” Inter. Symp. Microwaves, Sept 1-3, 2004 Bangalore, India,Sep2004K.J. Vinoy, “RF MEMS for Millimeter wave Phased Arrays,” Trends in Electronics,Communication and Information Technology (TECIT 2004), Feb. 26-28, 2004, IISc Bangalore,India, Feb2004S.V. Arun, R.S. Khetrimayum, and K.J. Vinoy, “Performance enhanced micromachined patchelement for monolithic GaAs based active phased array antenna,” International Conf. on AntennaTechnologies, February 23-24, Ahmedabad, 2005, Feb2005





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I. Paul, and K.J. Vinoy, “Miniaturized design of a micromachined phase shifter using modifiedground coplanar wave guide,” submitted to APSYM04 Natl. Symp. on Antennas & Propagation,Dec. 21-23, 2004, Cochin, India., Dec2004





1 of 2 6/20/2005 12:46 PM

K.V.S.HariAssociate Professor



Biography

Ph.D. Systems Science, University of California, San Diego, 1990; M. Tech, Radar & Commn.Engg., IIT Delhi, 1985; B.E, ECE, Osmania University, Hyderabad, 1983. Visiting AssociateProfessor, Department of EE, Stanford Univeristy (Sep 99--Dec 00), Senior Consultant, IospanWirless Inc., San Jose, CA (Sep 99 --Apr 00 ); Technical Lead on Wireless Channel Modelling as amemeber of the Due Diligence team of the Broadband Wireless Group of Sprint, USA (May 00 --Dec 00 ); Co-author of the IEEE 802.16 standard on Channel models for Fixed WirelessApplications; Associate Professor, ECE Department, IISc, 1998-; Assistant Professor, ECEDepartment, IISc, 1992-1998. Guest Researcher, Department of Sensors, Signals and Systems,Royal Institute of Technology, Stockholm, Sweden, Jul-Sep 1995. Senior Scientist, R & T Unit forNavigational Electronics, Osmania University, 1991-1992. Scientist, Defence Electronics ResearchLaboratory, Hyderabad, 1985-1987.


Fellow, IETE, IndiaSenior Member, IEEE

Research Interests

Space-Time Signal Processing for Wireless communication, OFDM based communicationsystems,Wireless MIMO Channel Modelling, Microphone arrays, Internet traffic modelling

Research Highlights

Designed and developed a Broadband Wireless MIMO channel measurement system in the 2.4-2.5GHz (MMDS) band. Conducted measurements to characterize the Broadband Fixed WirelessMIMO channel in the MMDS band. The above work was carried during the sabbatical leave atStanford University. Co-author of the IEEE 802.16 standard on Wireless Channel models for FixedBroadband Wireless Access Systems. Developed the Interleaved OFDM system which has a bettercode rate than the conventional OFDM system and with reduced complexity. The stability ofscheduled multi-access communication over quasi-static flat fading channels with random codingand independent decoding of messages has been investigated.


V. G. S. Prasad and K. V. S. Hari, 'Interleaved Orthogonal Frequency Division Multiplexing(IOFDM) System,' IEEE Transactions on Signal Processing, pp. 1711--1721,, Jun2004M. R. Bhavani Shankar and K. V. S. Hari 'Reduced Complexity Equalization schemes for ZeroPadded OFDM Systems,' to appear in IEEE Signal Processing Letters., Sep2004






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K. V. S. Hari and V. G. S. Prasad, 'Space-Time and Space-Frequency Block Coded InterleavedOFDM System,' Adaptive Antenna Arrays, S. Chandran, Editor, Springer Verlag, Berlin, 2004 (toappear). published in 2004


Avinash Achar and K. V. S. Hari,'Parametric Localization of Correlated Incoherently DistributedSources Using ESPRIT,' to appear in Proceedings of IEEE Sensor Array and Multichannel SignalProcessing Workshop, SAM2004,Barcelona,, Jul2004Vijayakrishna A. and K. V. S. Hari,'Filterbank precoding for MIMO frequency selective channels:Minimum redundancy and equalizer design,' to appear in Proceedings of IEEE Sensor Array andMultichannel Signal Processing Workshop, SAM2004,Barcelona,, Jul2004Vinod T.S and K. V. S. Hari,'Optimal Pilot tones for MIMO Interleaved OFDM systems,' to appearin Proceedings of ICASSP 2004, Montreal, May2004





1 of 1 6/20/2005 12:46 PM

M.K.RavishankarProfessor







1 of 1 6/20/2005 12:47 PM

Malati HegdePrincipal Scientific Officer



Biography

Principal Research Scientist, ERNET, ECE Department, 2002; Senior Scientific Officer, ERNET,ECE Department, 1988-2002; Scientific Officer, ERNET, ECE Department, 1987-1988;Programmer, CES Department , 1980-1987; Ph.D. Mathematics, IIT Kanpur, 1980.

Research Interests

Network Monitoring and Performance Management. Network Operations. Software and IPR.Protocol Conformance Testing.

Sponsored Projects

Development of Electronic Resource for Optimal Choice of Base S/W and Tools for Computer S/WDevelopers, Particularly of SME's Category , , Oct 2000 - Mar 2004A Software tool for Internet Bandwidth Management, , Oct 2000 - Mar 2002Internet Service Provider Architecture Test-Bed, , Oct 1999 - Apr 2000Conformance testing of X.25 PLP implementtaion, , Apr 1992 - Sep 1992


Mary Mathew, Malati Hegde and Gopi Garge, "Intellectual propoerty in software": Insights forIndian Business, Journal of Intellectual Property Rights, vol 9, pp . 515-532, November 2004,May2004





1 of 2 6/20/2005 12:48 PM

Navakant BhatAssociate Professor



Biography

Ph.D., EE department, Stanford University, USA 1996; M.Tech. in Microelectronics, IndianInstitute of Technology, Bombay, 1992; B.E. in Electronics and Communication, S.J.C.E., MysoreUniversity, 1989. Assistant Professor, ECE Department, IISc, Oct. 1999-to-present; Sr. Staff deviceengineer, Networking & Computing Systems Group, Motorola, Austin-TX, USA, Jan.1997-to-June 1999.


US patent #5960289 (1999):Method for making a dual thickness gate oxide layer using anitride/oxide composite region US Patent #6261978 (2001):Process for forming semiconductordevice with thick and thin filmsOne Indian patent pendingIEEE memberChair, IEEE EDS & SSCS Bangalore chapter

Research Interests

RF MEMS, Analog RF and mixed signal VLSI circuit design Reliability of VLSI devices, Noveldevice concepts for VLSI circuit application

Research Highlights

Adaptive circuit design technique for Neural network hardware demonstrated. Statistical modelingof 100nm CMOS transistor was demonstrated with computational efficiency RF MEMS torsionalvaractor was successfully prototyped 90 nm transistor design was optimized for RF applicationsMOCVD Gadolinium oxide was characterized for gate oxide application. Capacitance sensing ASICfor Gyroscope application was successfully realized.

Sponsored Projects

Transistor Mismatch in the Deep Submicron Technology, DST, Oct 2001 - Oct 2005Capacitance Sensing Integrated Circuit Chip, ISRO, Apr 2003 - Apr 2005National MEMS Design Centre, NPSM, Oct 2001 - Oct 2005Upgradation of MEMS Design Centre, NPSM, Oct 2003 - Oct 2005


N. Bhat, “MEMS for RF Applications”, IETE Technical Review, vol. 21, no. 2, Mar2004M.P. Singh, C.S. Thakur, K. Shalini, S. Banerjee, N. Bhat, and S.A. Shivashankar, “Structural,Optical, and Electrical Characterization of Gadolinium Oxide Films Deposited by Low-pressureMetalorganic Chemical Vapour Deposition”, Journal of Applied Physic, Vol 96, No. 10, pp.





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5631-5637, 15 , Nov2004A. Gupta and N. Bhat, "A Novel Technique to Realize Neuron Activation Function and itsDerivative", IEEE Transactions on Circuits and Systems Part I: Fundamental Theory andApplications , Sep2004K. Maitra and N. Bhat, "Impact of Gate to Source/Drain Overlap Length on 80 nm CMOS CircuitPerformance", IEEE Transactions on Electron Devices, Sep2004R. Singh and N. Bhat, "An Offset Compensation Technique for Latch Type Sense Amplifier in HighSpeed Low Power SRAMs", IEEE Transactions on VLSI Systems, May2004N. Bhat and C.S.Thakur, "Analog CMOS Performance Degradation due to Edge Direct Tunneling(EDT) Current in sub-100nm Technology" invited paper for "Journal of Semiconductor Technologyand Science" special issue on Device Reliability, Sep2003M.P. Singh, C.S. Thakur, K. Shalini, N. Bhat, and S.A. Shivashankar, "Structural and ElectricalCharacterization of Erbium Oxide Films Grown on Si(100) by Low-pressure Metalorganic ChemicalVapour Deposition", Applied Physics Letters, Oct2003H C Srinivasaiah and N. Bhat, "Monte Carlo Analysis of the Implant Dose Sensitivity in 0.1 mmNMOSFET", Solid-State Electronics, 47/8 pp. 1379-1383, Aug2003


R. Srinivasan and N. Bhat, “Impact of Gate-Drain/Source Overlap on Noise Figure in 90nm NMOSTransistor for RF Applications”, International Symposium on Microwaves, Dec2004B.P.Harish, N. Bhat, “Characterization of 65nm CMOS NAND gate delay sensitivity on gate lengthand implant dose variations”, IINC , Dec2004J.P.Kulkarni, N.Bhat, “Improving Tuning Range in Varactors using Poly-Silicon depletion Effect”,Asia Pacific Microwave Conference, New Delhi, Sep2004C. Venkatesh and N. Bhat, “A MEMS Oscillator based on Displacement Sensing Principle”, 8thIEEE VLSI Design and Test Workshops , Nov2004





1 of 1 6/20/2005 12:48 PM

P.S.NaiduProfessor



Biography

B.Sc.(Hon), M.Tech. (IIT/Kh); Ph.D. (UBC, Canada, 1965). Humboldt Fellow (1979-80) (atPhilips Forschungslaboratorium, Hamburg, Germany) National Reasearch Council (USA) SeniorResearch Associate(1988-1989), Naval Postgraduate School, USA

Research Interests

Underwater Signal Processing, Tomographic 3D imaging, Geophysical Signal Processing

Sponsored Projects

Source Localization in Shallow Water (DOE), edit, Jan 1996 - Jan 1996Tomographic Imaging for Ocean Applications (DOD), edit, Jan 1996 - Jan 1996


P. S. Naidu, P. G. K. Mohan, `A Study of the Spectrum of an Acoustic Field in Shallow Water dueto Noise Sources at the Surface,' Jour. Acoustical Soc of Am., Vol. 85, pp 716-725, l989., Jan1989P. S. Naidu, H. R. Uday Shankar, `Source Localization in a Wedge Shaped Shallow Sea,' SignalProcessing (Elsevier), Vol. 29, pp 213-223, 1992. , Jan1992P. S. Naidu, Usha C. Padmini, `Circular Array and Estimation of Direction of Arrival of aBroadband Source,' to appear in Signal Processing (Elsevier), Vol. 37, No. 2, 1994., Jan1994P. S. Naidu, Y. V. Reddy, `Modelling of Sea Surface for Day Light Imagery Studies,' IEEE Journalof Oceanic Engineering, Vol. 13, No. 2, pp 82-83, l988, Jan1988





1 of 2 6/20/2005 12:49 PM

P.Vijay KumarProfessor



Biography

B.Tech (1977) ECE IIT Kharagpur; M.Tech (1979) ECE, IIT Kanpur; Ph.D (1983) EE, Univ.Southern California (USC); (1983-88) Asst. Prof., EE, USC; (1989-1993) Assoc. Prof., EE USC(1996-97) Visiting Faculty, Indian Institute of Science, Bangalore; (1994-present) Professor, EE,USC (1994-Present) Professor, Mathematics, USC; (2003-present) Professor, ECE, IISc (on leaveof absence from USC).


Fellow of the IEEE, 2002.IEEE Information Theory, Prize Paper Award, 1995.

Research Interests

Research interests include: (a) Signal design for wireless communication including space-time codes(b) Error-correcting codes including LDPC Codes (c) Codes for Optical CDMA

Research Highlights

CURRENT:In Sep. 2004 we were the first to explicitly solve an open problem posed in 2003 byZheng and Tse in MIMO wireless signal design. The problem was worked on by leading researchersworldwide. The problem was one of designing space-time codes that optimally tradeoff capacity forreliability over a wide variety of fading channels. Our solution has the added benefit of being explicitand having minimum delay. We also have extensions to the ARQ channel where one bit of feedbackis assumed. PAST: Research resulted in (a)construction of the short scrambling code used in theWCDMA standard (b) solution of a longstanding problem in coding theory relating to the apparentlinear-like behaviour of a pair of nonlinear codes.

Books

Jong-Seon No, Hong-Yeop Song, Tor Helleseth and P. Vijay Kumar (Editors), Mathematicalproperties of Sequences and other Combinatorial Structures, Kluwer Academic Publishers.published in 2003T. Helleseth, P. V. Kumar and K. Yang, (Editors) Sequences and Their Applications - SETA '01,Proc. of SETA '01, Springer. published in 2002


O. Moreno, Z. Zhang, P. V. Kumar and V. Zinoviev, ``Asymptotically Optimum Families of OpticalOrthogonal Codes,'' IEEE Trans. on Inform. Theory, vol. 41, pp. 448-455., Mar1995P. V. Kumar, T. Helleseth and A. R. Calderbank, `` An Upper Bound for Weil Exponential Sumsover Galois Rings and Applications,'' IEEE Trans. on Inform. Theory, vol. IT-41, pp. 456-468.,





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Mar1995K.Shum, I.Aleshnikov, P.V. Kumar, and H.~Stichtenoth, newblock `À low-complexity algorithmfor the construction of algebraic geometric codes better than the {G}ilbert-{V}arshamov bound,''IEEE Trans. Inform. Theory, pp. 2225-2242., Sep2001K. Yang, Y. Kim, and P. V. Kumar, '' Quasi-Orthogonal Sequences for Code-Division MultipleAccess Systems,'' IEEE Trans. Information Theory, pp. 982-993. , May2000S. Bozta{s}, R. Hammons, and P.V. Kumar, ``4-Phase Sequences with Near-Optimum CorrelationProperties'', IEEE Trans. on Inform. Theory, vol. IT-38, 3, pp. 1101-1113. , May1992R. Hammons, P. V. Kumar, R. Calderbank, N. Sloane and P. Solè, ``The Z4-Linearity of Kerdock,Preparata, Goethals and Related Codes,'' IEEE Trans. on Inform. Theory, vol. IT-40, pp. 301-319. ,Mar1994Hsiao-feng Lu and P. V. Kumar, A Unified Construction of Space-Time Codes with OptimalRate-Diversity Tradeoff, IEEE Trans. Inform. Theory, May2005Petros Elia K.Raj Kumar, Sameer.A Pawar, P.Vijay Kumar Hsiao-feng Lu,`Èxplicit,Minimum-Delay Space-Time Codes Achieving the Diversity Multiplexing Gain Tradeoff '',submitted for publication to the IEEE Trans.Inform Theory, submitted, , Sep 2004


P. V. Kumar, M. Win, H-F. Lu, C. Georghiades, `Èrror-Control Coding Techniques andApplications,'' invited chapter in the handbook, Optical Fiber Telecommunications IV, edited byIvan P. Kaminow and Tingye Li. published in 2002T. Helleseth and P. V. Kumar, ``Sequences with Low Correlation'', chapter in Handbook of CodingTheory, edited by V. Pless and C. Huffman, Elsevier Science Publishers. published in 1998T. Helleseth and P. V. Kumar, ``Pseudonoise Sequences'', chapter in Mobile CommunicationsHandbook, edited by Jerry D. Gibson (CRC and IEEE Press), 1996, also reproduced inCommunications Handbook, edited by Jerry D. Gibson (CRC and IEEE Press). published in 1997


`Àchieving the D-MG tardeoff for all T >= M_t as well as for the ARQ Channel", K. Raj Kumar,Sameer A. Pawar, Petros Elia, P.Vijay Kumar and B. A. Sethuraman. to be presented at the IEEEInt. Symp. Inform. Theory, Adelaide., Sep2005`Èxplicit, Minimum-Delay Space-Time Codes Achieving The Diversity-Multiplexing Gain Tradeoff", Petros Elia, K. Raj Kumar, Sameer A. Pawar, P. Vijay Kumar and Hsiao-feng Lu. to be presentedat the IEEE Int. Symp. Inform. Theory, Adelaide., Sep2005* ``Space-Time codes meeting the D-MG Tradeof with low signaling complexity", Hsiao-feng Lu,Petros Elia, K. Raj Kumar, Sameer A. Pawar, and P. Vijay Kumar. 39th Annual Conference onInformation Sciences and Systems, John Hopkins University. , Mar2005K.Raj Kumar, Sameer A. Pawar , Petros Elia, P.Vijay Kumar , and Hsiao-feng Lu " Space-TimeCodes Optimal Under the Diversity-Multiplexing Gain Tradeoff", Proc. National Conference onCommunications,IIT, Khargpur,India, pp. 487-491., Jan2005





1 of 2 6/20/2005 12:50 PM

Pallapa VenkataramProfessor



Biography

Received the Ph.D degree in Information Sciences from the University of Sheffield, U.K.in 1986.He is currently a Professor of Electrical Communication Engineering with Indian Institute ofScience, Bangalore, India, where he is involved in Wireless Access Research and ProtocolEngineering. He was with Hindustan Aeronautical Limited, Bangalore, India, as a Deputy Manager( Computers) from 1980 to 1982, where he worked mainly on systems design for financial andmaterial management systems. He was a Visiting Scientist at the University of Maryland, Baltimore,USA and at the University of Montreal, Canada, in 1992. In 1995, he was a Visiting Researcher atthe University of Enschede, Netherlands. He was a Visiting Professor at NORTEL (NorthernTelecom), Canada in 1998 and at SK University, Anantapur, India, in 1997. He serves on severaladvisory committees and frequently consults to Government and Industry. He has published over102 papers and he co-authored a chapter in the recently published book "Mobile MultimediaCommunications". He was a Program Chair for the International Symposium on WirelessCommunications for the Next Millennium (ISWCM'98).


Prof P Venkataram, PET Lab, ECE, has been listed in 2004 Marquis WHO’S WHO IN THEWORLDReceived an University Research Program (URP) award from Cisco Systems, Inc., USA., to do theresearch in "Design and development of Routing Intelligent Mobile Agents (RIMAs) for InternetRouting", Feb., 2001.

Research Interests

Protocol Engineering; AI applications in Network Management; Mobile Networks and Multimediasystems.

Research Highlights

PET Lab: Agent Based Schemes to Resolve disaster management issues. Agent Based Schemes toResolve Some of the Problems in Multimedia communications. Secure Routing in MANETs usingsupport nodes. Conformance Testing of Mobile IPv6. Intelligent Agents for secure e-commerce.Multimedia Communications Traffic Analysis. Design of algorithms for efficient routing in theInternet. Agent Based Schemes to Resolve Context-Aware Application Issues. Design of QoSAlgorithms for Multimedia Communication.Design of Multi access protocols for Wireless Network.

Books

Communication Protocol Engineering: Venkataram P and Sunil K Manvi, Prentice-Hall of India(PHI), New Delhi published in 2004





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S.S.Manvi and Venkataram P, ” An intelligent Product-information presentation in E-commerce”,Intl. Jl. of Electronic Commerce Research and Applications (ECRA), May 2004S.S.Manvi and P. Venkataram , ”An Agent Based Adaptive Bandwidth Allocation Scheme forMultimedia Applications”, Journal of Systems and Software, Jul 2004S.S.Manvi and Venkataram P, ” Applications of agent technology in communications: a review”,Computer Communications, Vol.27, no. 15, pp.1493-1508, Apr 2004Mukul C. Dutt and P. Venkataram; “Method of Energy Efficient Routing in Mobile Ad-HocNetworks”; TENCON, 21-24 Nov. 2004, Chiang Mai, Thailand, Nov 2004Balachander.R and P. Venkataram; “User Mode Linux Based MPLS”; TENCON, 21-24 Nov. 2004,Chiang Mai, Thailand , Nov 2004





1 of 1 6/20/2005 12:50 PM

S.V.GopalScientific Officer



Biography

M.Sc(Engg.) E C E Dept., (IISc.), 1995; M.Sc(Phy.) Bangalore University, 1981; S.O, ECEDepartment, (IISc.), 1995 ; Tech. Officer, ECE Department, (IISc.); Scientific Asst., ECEDepartment, (IISc.) .

Research Interests

Working experience on Voice/Data Integration, Dynamic Channel Allocation, Fuzzy Logic Systems.Low Voltage Micro Power Circuits


S. V. Gopalaiah and A. P. Shivaprasad, “Low Voltage CMOS op-amp with Rail-to-RailInput/Output Swing”, Proc. of DELTA 2004: Second IEEE International Workshop on ElectronicDesign, Test and Applications, Perth-Australia, Jan. 28-30, 2004, pp. 349-354., Jan2004S V Gopalaiah, Sukanta K Panigrahi and A P Shivaprasad; IEEE Intl. Proceedings of VLSI Design2004; Mumbai., Jan2004Sukanta K Panigrahi, S V Gopalaiah and A P Shivaprasad.,"Design of Low Voltage CMOSOperational with rail-to-rail input/output swing., Jan2003S V Gopalaiah and A P Shivaprasad.,"Low Voltage CMOS op-amp with Rail-to-Rail input/outputswing, Apr2003





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T.BadrinarayanaProfessor







1 of 1 6/20/2005 12:52 PM

T.S.VedavathyProfessor



Biography

Ph.D., Electrical Communication Engg., Indian Institute of Science, Bangalore, 1974; M.Sc.,Bangalore University, 1969; Associate Professor, ECE Department, IISc, 1993-present; AssistantProfessor, ECE Department, IISc, 1987-1993; Lecturer, ECE Department, IISc, 1982-87. Member,ISHM


M. N. Saha Memorial Award for Best Paper in IETE Journal, 1979.

Research Interests

RF Problems of Mobile Communications. Biological Effects of Mobile Telephone Handset antennaradiation on Human Head. Handset antenna beam shaping for minimal radiation effect. Propagationcharacteristics of Microwaves. Channel modelling and microstrip antennas for handset, base-stationand GPS. Theoretical analysis of stacked structures for broadbanding. Intelligent Antennas.Microwave Integrated Circuits.

Sponsored Projects

Co-investigator in ISRO-IISc Project, , ISRO-IISC, May 1997 - Jan 2002


S. Sriram, Rajanish and T. S. Vedavathy, "Conformal Mapping Technique for determining theresonant frequencies of circular microstrip antennas," Symposium Proceedings of 1998 InternationalWireless and Telecommunications Symposium/Exhibition, Malaysia (IWTS'98), May1998Rajanish, S. Sriram and T. S. Vedavathy, "A Novel Multiple Planes Based Propagation Model forMicrocellular Environment," Symposium Proceedings of 1998 International Wireless andTelecommunications Symposium/Exhibition, Malaysia (IWTS'98), May1998Rajesh Khanna, S. Sriram and T. S. Vedavathy, "A Rigorous Analysis of Biological Effects ofMicrowave Power on Human Head," Symposium Proceedings of 1998 International Wireless andTelecommunications Symposium/Exhibition, Malaysia (IWTS'98), May1998S. R. Nagesh and T. S. Vedavathy, "A Procedure for Synthesizing a Specified Sidelobe Topographyusing an Arbitrary Array," IEEE Tran. Antennas and Propagation, Jul1995





1 of 2 6/20/2005 12:53 PM

T.V.SreenivasAssociate Professor



Biography

Ph.D. Tata Institute of Fundamental Research, Bombay, 1981; M.E. Indian Institute of Science,1975; B.E. UVCE, Bangalore University,1973;Scientist-C, LRDE, Bangalore, 1982-85; ResearchScientist, Norwegian Institute of Technilogy, Trondheim, Norway, 1986-88; Visiting AssistantProfessor, Marquette University, Milwaukee, USA, 1988-90; Faculty Member, Indian Institute ofScience 1990; Visiting Professor, Fraunhofer Inst. Int. Ckts., Erlangen, Germany Jan-Dec 1997, Jun1998; Visiting Professor, Griffith University, Brisbane, Australia, Jun-Aug 2000; Director,ESQUBE Communication Solutions Pvt. Ltd., Bangalore, 2003.


Republic Day Award, LRDE, Bangalore, 1984.IEEE Industrial Electronics Society Distinguished SpeakerFellow, IETE, IndiaSenior Member, IEEE, USASecretary, IEEE Signal Processing Society, Bangalore Chapter

Research Interests

Speech and Audio signal processing; auditory modelling, time-frequency representation, statisticalmodeling of speech such as HMMs and NNs, speech enhancement in noise, compression of speech/audio signals, audio spatializaiton and morphing.

Research Highlights

a) Developed an adaptive window based IF estimation technique using zero-crossings of a signal,useful for AM-FM decomposition and further to speech/audio coding. b) Acoustic sub word basedergodic-HMM is shown to be effective for representing the pronunciation differences of words. c)Matrix-quantization based iterative Wiener filtering is developed for speech enhancement innon-stationary noise.

Sponsored Projects

Low bitrate speech compression for secrecy applications, (HFCL) 7.5 lakhs, 2004-2005, HFCL,Noida, Nov 2004 - Nov 2005Statistical modelling for LID using sub-word units, (DRDO), Rs. 5.1 lakhs, 2002-04, DRDO, Nov2002 - Oct 2004Isolated Word Recognition using sub-word units, (STM, Singapore), Rs. 4.56 lakhs, 2002-03,STM, Singapore, Jan 2002 - Aug 2003G.723 implementation for IKSOBO router, (HFCL), Rs. 5.25 lakhs 2002-03, HFCL, Noida, Aug2002 - Sep 2003





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S Chandra Sekhar and TV Sreenivas: Àdaptive window Zero-crossing based instantaneousfrequency estimation,' EURASIP J. Applied Signal Processing, No.12, Sep2004S Chandra Sekhar and TV Sreenivas: Èffect of interpolation on IF estimation using polynomialWigner-Ville distribution', {\em Signal Processing (Elsevier),} Vol.84, No.1, pp107-116, Jan2004S Chandra Sekhar and TV Sreenivas: Àdaptive spectrogram Vs adaptive pseudo Wigner-Villedistribution for instantaneous frequency estimation,' {\em Signal Processing (Elsevier),} Vol.83,pp1529-1543, Sep2003G Viswanath and TV Sreenivas, Ìnstantaneous frequency estimation using higher order TFRs,'{\em Signal Processing (Elsevier),} Vol.82, No.2, pp 127-132, May2002G Viswanath and TV Sreenivas: "Cone-kernel representation Vs Instantaneous power spectrum",IEEE Trans. Signal Proc., Vol.47, No.1, pp 250-254, Jan1999RNV Sitaram and TV Sreenivas, "Incorporating phonemic properties in HMMs for speechrecognition", J. Acoust. Soc. Am., Vol. 102, No.2, pp 1149-1156, Aug1997TV Sreenivas and P Kirnapure, "Codebook constrained Wiener filtering for speech enhancement",IEEE Trans. Speech and Audio Proc., Vol.4, No.5 , May1996


Krishna Kumar, S and TV Sreenivas: `Ànalysis of increased correlation in blind audio watermarkdetection,'' submitted to Int. Conf. Signal Processing and Communications (SPCOM),Bangalore,Dec2004Krishna AG and TV Sreenvias: ``Shared mixture GMM classifier,'' submitted to Int. Conf. SignalProcessing and Communications (SPCOM)} Bangalore, Dec2004Krishna Kumar, S and TV Sreenivas: `Ìncreased Correlation in Blind Audio Watermark Detection -A Blessing in Disguise'' 117th Audio Engineering Society Convention (AES),San Francisco, USA,Oct2004Sharath Rao, K, TV Sreenivas and A Sreenivasa Murthy: `Ìmproved Iterative Wiener Filtering fornon-stationary noise speech enhancement'', Proc. 8th Int Conf. Spoken Lang. Proc. (ICSLP)}. JejuIsland, Korea, Oct2004





1 of 2 6/20/2005 12:53 PM

Talabatulla SrinivasAssistant Professor



Biography

Obtained ME (integrated) and Ph.D from ECE Dept. IISc. in 1987 and 1993 respectively. Has beenPost doctoral research fellow at Toyohashi University of Technology, Japan during 1992~1996.Research Associate at ECE dept during 1996~1997. Assistant Professor since January 1998.


IEEE, Lasers and Electro-optics society, since 1987ISSS, Institute of Smart Structures and SystemsSPIE- Institute of International Photonics

Research Interests

Optical communications, Integrated Optics, Optical waveguides theory. Microwavephotonics,Fiber-optic sensors, micro-opto-electro-mechanical devices and systems (MOEMS).Research interests span both theoretical and experimental studies.

Research Highlights

1. Radiation mode coupling theory for branching optical waveguide devices. 2. Mach-Zhenderinterferometric pressure sensor on silicon micromachining 3. Integrated optic chip for fiber opticgyroscope applications 4. Photonic true time delay networks for antenna array beam steeringapplications. 5. Integrated Optical computing architectures

Sponsored Projects

Photonic True time delay networks for active aperture radar applications, DOE, Apr 1999 - Mar2002Integrated Optic Chip for Fiber Optic Gyroscope, DRDO, Jun 2001 - Jun 2003

Books

A. Selvarajan, S.Kar and T. Srinivas, Optical Communications: Principles and Applications, TataMcGrawHill (In press) published in 2000


“Investigation of Ring Resonators in Photonic Crystal Circuits”, V. Dinesh Kumar, T. Srinivas, A.Selvarajan, Elseveir Journal of Photonics and Nanostructures- Fundamentals and Applications2(2004), 199-206, Jan2004“Investigation of Waveguide Couplers in two Dimentional Photonic crystals”, V. Dinesh Kumar, T.Srinivas, A. Selvarajan, IEEE Photonic Technology Letters (2004). (Communicated), Jan2004





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“Waveguiding Through Coupled Cavities in Photonic Crystal Slab”, V. Dinesh Kumar, T. Srinivas,A. Selvarajan, IEEE Journal of Lightwave Technology (2004). (Submitted), Jan2004


“Analysis of 90° Bends in Hexagonal Photonic Bandgap Structures”, V. Dinesh Kumar, T. Srinivasand A.Selvrajan, Proceedings of Seventh International Conference on Optoelectronics, Fiber Opticsand Photonics. 9-11 December 2004, Cochin, India., Dec2004“Noise in Micro-Opto-Electro-Mechanical (MOEM) Sensors”, Prasant Kumar Pattnaik, T.Srinivas,A.Selvarajan, Proceedings of Seventh International Conference on Optoelectronics, Fiber Opticsand Photonics. 9-11 December 2004, Cochin, India., Dec2004“Modal Analysis of Optical Waveguides with nonlinear cladding for higher order modes and forhigher order nonlinearities”, Bh. Vijayaaditya, T. Srinivas and E. Sreekiran, Proceedings of SeventhInternational Conference on Optoelectronics, Fiber Optics and Photonics. 9-11 December 2004,Cochin, India., Dec2004“A Novel Technique To Characterise Propagation Loss of Optical Waveguides”, R. Fazludeen,Samit Barai, P.K Patnaik, T.Srinivas and A.Selvarajan, Proceedings of Seventh InternationalConference on Optoelectronics, Fiber Optics and Photonics. 9-11 December 2004, Cochin, India,Dec2004





1 of 2 6/20/2005 12:54 PM

Utpal MukherjiAssociate Professor



Biography

Sc.D. (Electrical Engineering and Computer Science), Massachusetts Institute of Technology, 1986;E.E., M.I.T., 1984; S.M., M.I.T., 1982; B.Tech. (Electrical Engineering), I.I.T. Bombay, 1980;Associate Professor, ECE Department, I.I.Sc., 1996 to date; Assistant Professor, ECE Department,I.I.Sc., 1989-1996; Member of Technical Staff, AT&T Bell Laboratories, Murray Hill, 1986-1989.


Senior Member, IEEE

Research Interests

Communication Networks modelling, analysis, control, and optimization.

Research Highlights

The proportional fairness of delays in statistical multiplexing based on optimal balancing ofweighted cumulative queue lengths has been investigated. The stability of scheduled multi-accesscommunication over quasi-static flat fading channels with random coding and independent decodingof messages has been investigated.

Sponsored Projects

Delay Differentiation by Optimal-Balancing-of-Queue-Lengths Scheduling, DRDO, Dec 2003 - Dec2005Co-investigator (with Prof. Vinod Sharma) for "Modelling and Analysis of Cellular MobileCommunication Systems"., DST, Mar 1999 - Feb 2001

Books

Achieving delay differentiation by scheduling based on optimal balancing of weighted instantaneousand cumulative queen lengths, Avijit Chakraborty & Utpal Mukherji published in 2004Utpal Mukherji and K.V.S. Hari (eds.), Communications'98 - Proceedings of the NationalConference on Communications, Tata McGraw-Hill, New Delhi, 1998. published in 1998


R.R. Pillai, J. Biswas, U. Mukherji, "Throughput Performance of Distributed Applications, Jul1999R.R. Pillai, U. Mukherji, H.Adiseshu, V.Sharma, "Distributed Queue Dual Bus Metropolitan AreaNetwork: A Review of Performance Analysis of the Medium Access Control Protocol," Journal ofthe IETE, 39(2), pp. 111-124., Mar1993U. Mukherji, "A Periodic Scheduling Problem in Flow Control for Data Communication Networks,"





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IEEE Transactions on Information Theory, 35(2), pp. 436-443., May1989M.G. Gouda, N.F. Maxemchuk, U.Mukherji, K. Sabnani, "Delivery and Discrimination: The SeineProtocol," Computer Communication Review, 18(4), pp. 292-302., Aug1988


2004 International conference on Signal Processing and Communication,Bangalore, Jan2004Delay Differentiation by Optimal-Balancing-of- Queue-Lengths Scheduling, Oct2003Multi-access Poisson Traffic Communication with Random Coding, Independent Decoding andUnequal Powers, Oct2000Optimal Scheduling for Balancing Queue Lengths, Dec2000





1 of 2 6/20/2005 12:55 PM

Vinod SharmaAssociate Professor



Biography

Prof.Vinod Sharma did his B.Tech from I.I.T Delhi in 1978 and then completed his Ph.D fromCarnegie Mellon University in 1984. He joined I.I.Sc as a faculty member in January 1988. Beforethat he was a faculty of Northeastern University. He has served as a Visiting Professor in thefollowing Universities: 1)Helsinki University Of Technology, Sept 1998-June1999 2)INRS,Montreal, July 1995-December 1995 3)University Of California, Los Angeles, August1985-December 1987


Senior Member, IEEEFellow of the Institute of Electronics and Telecommunications Engineers (IETE),India.Member, Institute of Mathematical Statistics.

Research Interests

1)Communication Networks 2)High Speed Networks 3)Wireless Mobile Networks 4)QueueingTheory 5)Estimation Theory

Research Highlights

We have explored the possibility of using blind equalization in wireless channels and found that insome fading scenarios (K>0) blind/semi-blind equalizers can outperform training based equalizers.In wireless channels we have also studied the benefits of adaptive joint source-channel coding basedon the queue length and channel state information. It was found that such cross-layer design cansignificantly improve the system performance.

Sponsored Projects

Advanced research in Mathematical Engineering, DRDO, Govt. of India, Sep 1999 - Sep 2005Modelling and Analysis of cellular mobile communication systems, Dept. of Science & Technology,New Delhi, Mar 1999 - Mar 2001Performance Analysis of TCP/IP over ATM & Sonet networks, Northern Telecom(USA), Jun 1998- Jun 1999End to end quality of service evaluation in ATM networks, Northern Telecom(USA), Jul 1997 - Jul1998


"Performance analysis of TCP connections with RED Control and exogenous traffic, QueuingSystems", V Sharma and P. Purkayastha, Vol 48, 193-235 , Jan 2004"Providing QoS to TCP and real time connections in the Internet, Queuing Systems", V.Reddy, V





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Sharma and M B Suma , Vol 46, 2004, 461-480, Jan 2004V. Sharma and S. K. Singh," Entropy and mutual information in the regenerative setup withapplications to Markov channels", Accpeted for publication in IEEE Trans. Information Theory, Jun2003V. Reddy, V. Sharma and M. B. Suma," Providing QoS to TCP and real time connections in theInternet", Accepted for publication in Queueing Systems, Jan 2003V. Sharma, J. Virtamo and P. lassila, "Performance analysis of a router with RED control,Probability in the Engineering and Informational Sciences", Vol.16,367-388, May 2002Vinod Sharma, "Queues with service rate controlled by a delayed feedback", to appear in QueueingSystems, Mar 2001Vinod Sharma and J.Virtamo," A finite queue priorities" , to appear in Performance Evaluation, Jan2001J. Sant and Vinod Sharma, "Performace analysis of a slotted ALOHA protocol on a capture channelwith fading", Queueing Systems, Vol. 34, 2000, 1-35, May 2000


"A Simple approach to provide QoS and fairness in Internet", V. Kamble and V Sharma,International Conference on Signal Processing and Communication (SPCOM04), Bangalore,Dec2004"Information theoretic comparison of training, blind and semi-blind signal separation algorithms inMIMO systems", V. Kavitha and V Sharma, International Conference on Signal Processing andCommunication (SPCOM04), Bangalore , Dec2004"Adaptive joint source/channel rate allocation policies for delay sensitive applications over fadingchannels", C Tejaswi and V Sharma, Proc. IEEE International Symposium on Information Theory(ISIT), USA., Dec2004"Exponential diversity achieving spatio-temporal power allocation scheme for MIMO fadingchannels, K Premkumar ", A Rangarajan and V.Sharma, Proc. IEEE International Symposium onInformation Theory (ISIT),USA., Dec2004




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