Division of Communication Engineering - NTU...Division of Communication Satellite Engineering (SEC)...

Division ofCommunication Engineering

Nanyang Technological University School of EEE Research Report 2005 57

EngineeringDivision of

Communication

The vision of the CommunicationEngineering Division is to be a globalleader in wireless and broadbandcommunication research.

The vision of the Communication Engineering Divisionis to be a global leader in wireless and broadbandcommunication research. The Division has some 53 full-time and adjunct academic staff members, 46 researchstaff and 22 technical support staff. Academic staffmembers of the Division spearhead the research activitiesof three research centres, viz. Network TechnologyResearch Centre (NTRC), Positioning and WirelessTechnology Centre (PWTC), and Satellite EngineeringCentre (SEC). Within NTRC, there are four researchprograms, namely, Power Line Communications, OpticalCommunications, Mobile Network Technology andNetwork Control and Engineering. PWTC also has threeresearch programs; namely, Global Positioning Systemsand Applications, RF identification and Localization andWireless Broadband Networks. The R&D program underSatellite Engineering Centre includes space science,technology and satellite mission development coveringLEO satellite space bus and system, LEO satellite payloadand application and LEO satellite ground-station andmobile terminal.

The Division also has two other research groups; namely,Microwave Circuits, Antennas and Propagation (MCAP),and Modulation, Coding and Signal Processing (MCSP).The former group focuses on the development of newalgorithms and tools for computational electromagnetics,and innovative design of microwave circuits, antennas,and wireless systems for industrial applications. The lattergroup focuses on information theory, and advancedmodulation, coding and signal processing techniques forwireless and secured communications.

In 2005, 27 research projects have been completed and34 others are in progress. While 19 PhD and 5 MEngcandidates have completed their thesis in 2005, theDivision currently has some 106 research studentspursuing PhD. The total grant acquired for all the ongoingresearch projects amounts to over $13 million.

Nanyang Technological University School of EEE Research Report 200558

Engineering cont..

Division ofCommunication

TechnologyResearch (NTRC)

Network

PCF Experimental Setup

The Optical Communication group in Network TechnologyResearch (NTRC) is dedicated to design and develop newmethodologies for implementing next-generation opticalnetworks. The key research areas being looked at includeFibre Optics, Generalized Multi-protocol Label Switching(GMPLS), Fibre Bragg Gratings-based (FBGs) devices andfabrication systems, Channel Performance Monitoring forTerabit WDM Networks and Photonic Crystal Fibres (PCFs).

The Group has produced a novel design of an opticalbuffer which sets a new world record - a buffer timelonger than 1.568ms as compared to the previous recordof 1ms. They also realized a 72 fs ultrashort soliton pulseoutput from a passive mode locked fibre laser at 1550nm wavelength. This is the shortest soliton pulse everobtained from a fibre cavity. They are also developingultra-high repetition rate fibre soliton lasers at 660GHzusing a passively mode locked technology.

GMPLS, the extension of MPLS-TE as a unified controlapproach for IP-Photonic networking, is another area inwhich the group is actively involved. In this project, theyhave successfully developed a GMPLS prototype systemon a PC/Linux platform. This uses a novel model for aGMPLS enabled multilayer router that they themselveshad proposed. They also built a network testbed using

this prototype GMPLS router to demonstrate variousaspects of GMPLS network operations such as constraintbased routing, path provisioning, integrated multilayerrouting and network management. This implementationexperience provided them greater insight on the GMPLStechnology and on various design issues for its controlplane. Thier current research is on multicast routing andwavelength assignment (MRWA) problems on all-opticalnetworks involving optical cross-connects and opticalsplitters.

NTRC has established a PCF research group to study andfabricate PCFs and PCF-based devices. A twin-core PCFhas been realised in collaboration with the Optical FibreTechnology Center in the University of Sydney (Australia).A joint project on PCF fabrication has also been establishedbetween NTRC and the Yangtze Optical Fibre & CableCompany Ltd. Several novel ideas on PCF-based devicesfor optical fibre communications are also being explored.For example, a PCF Mach-Zehnder interferometer withtunable wavelength using mechanical pressure has beenimplemented.


Engineering cont..


TechnologyResearch (NTRC) cont..

Network

Optical Resilient Packet Ring (O-RPR) based on All-Optical Buffering Techniques

To date, six patents have been filed. Members of thegroup have close links with many institutions, includingMonash University (Australia), Hong Kong PolytechnicUniversity, City University of Hong Kong, Beijing Universityof Post and Telecommunications (PRC), TsinghuaUniversity (PRC), University of Birmingham (UK), AustralianNational University, Pek ing University (PRC),Communications Research Laboratory (Japan), NationalChiao Tung University (ROC), and University of Melbourne(Australia). The Center has also strengthened its linkageswith local and overseas research institutions throughcollaborations for research projects and through exchangeof visiting researchers and students.

Microscopic structure of PCF consisting of arrays of tinyholes along the length of a fibre.


Engineering cont..


Positioning&

Technology Centre (PWTC)Wireless

Wireless NetworkResearch Program

The three research groups for R&D activities in thePositioning & Wireless Technology Centre (PWTC) are inthe areas of Wireless Network, RF Identification andTagging (RFID) and Global Navigation Satellite System &Applications.

PWTC’s major achievements/activities in 2005 includethe securing of some $2.1 million research funding fromexternal and internal sources, to support 22 projects, andthe signing of MOUs with the Hong Kong University ofScience and Technology, and the University of ElectronicScience and Technology, Chengdu, China

The Wireless Network Research Program aims to excel inthe research and development of advanced wirelesstechnology and solutions. Currently, the program’s R&Dactivities are mainly focused on the PHY (physical), MAC(medium access control) and networking layers ofbroadband wireless systems. Specific areas of interestinclude:

1. Broadband wireless metropolitan/local/personal area network(WMAN/WLAN/WPAN)- Advanced modulation and coding

techniques: MIMO (multiple-inputmultiple-output) coding, adaptiveOFDM (orthogonal frequency divisionmultiplexing), Turbo coding/decoding,dirty

- paper coding etc.- Development of MIMO-OFDM test-bed.

2. Ultra-wideband (UWB)- Standards and applications: IEEE

802.15.3a/4a, precision positioning etc.- PHY, MAC and routing issues in UWB- Coexistence with WLAN, GPS systems.

3. Mobile ad hoc network (MANET)- MAC and routing protocols enhancements:

cross-layer design, QoS (quality of service)routing etc.

- Development of MANET test-bed on PDAs and laptops.

4. Wireless Propagation Studies- Propagation prediction and development

of clutter database for digital TV (DTV).- Spatial diversity for urban DTV

In MIMO Coding research, we have studied in depth aclass of space-time transmit diversity codes called Quasi-Orthogonal Space-Time Block Code with MinimumDecoding Complexity (MDC-QOSTBC). The decodingcomplexity of MDC-QOSTBC is next only to O-STBC.However, it has a higher code rate and hence providesbetter spectral efficiency than O-STBC. We have derivedits algebraic code structure, proved that it has a coderate advantage of 1/4 over O-STBC, developed systematiccode construction rules to build such codes, and derived


Engineering cont..


Wireless Network

Tagging Program

RF &Identification

A 4-element beam-switched antenna array.

its optimum code constellations for achieving full diversityand maximum coding gain. The differential versions ofMDC-QOSTBC have also been developed to extend thebeneficial attributes of MDC-QOSTBC to non-coherentsystems. Finally, we have also developed the first-everfull-diversity QO-STBC with code rate of 5/4 for fourtransmit antennas.

In an A*STAR project on UWB signal processing forpositioning and communication systems, we haveproposed and confirmed by simulation and field trialsthat:

Phase-Only Correlator is able to achieve very narrow (2-sample) detection peak width and virtually zero aperiodicautocorrelation values using any pseudo-randomsequence, instead of special sequences such as Barkersequence which have limited lengths. This performancecan be achieved using any UWB pulse shape (e.g. Gaussianderivatives) in a wide variety of channels includingconstant-frequency-offset channels and multipath fadingchannels.

Research Program cont..

PWTC has been extensively involved in the design ofmany antennas and arrays for various wirelesscommunication systems, such as 900MHz and 2.45GHzRFID systems, GSM and DCS mobile systems, and 60GHzhigh-speed wireless LAN. Among the many antennasstudied, microstrip-fed slot antennas appear to be superiorcandidates for wide-band, high-gain and low-profileantennas and arrays. Microstrip-fed slot antenna elementsand arrays have been designed at various frequencybands including 900MHz, 1.8GHz, 2.45GHz, 5.8GHz, 10GHz,24GHz and 60GHz. Both linear and circular polarizationshave been considered to cater for differentcommunication systems.

Antenna arrays capable of steering or switching theirradiation beam are also investigated for RFID and trackingapplications. These can also enhance the receptionperformance of various communication systems.

Under a pilot project funded by A*STAR and incollaboration with IME, UWB antennas and transmitterfront-end circuits have been developed. Two types ofprinted antennas have been developed. These antennascover the 3.1-10.6 GHz frequency range. For a pair ofCPW-fed printed hexagonal antennas, the transmissionand reception transfer functions have been calculatedbased on the frequency domain measurement results.The time domain measurement is then carried out tosee the impulse response of these antennas. Themeasured results match well with those calculated.

Another project headed by Professor Law Choi Look isinvestigating a new type of printed structure which hasthe potential to emulate a helix. The main feature of thestructure is the inclined conducting strips on the top andbottom surfaces of the substrate. These conducting stripsemulate a helix and slow down the propagating wavedepending on the angle of inclination. Therefore thestructure is called a ‘planar helix’. It is possible to addconducting side plates, perpendicular to the substrate.Depending on the design parameters, the structure cansupport a purely guided wave or a leaky-wave.


Engineering cont..


Tagging Program cont..RF &Identification

CPW-fed printed antenna and Measured return loss

Novel Printed Antenna Structure

S12: Blue, S11: Red.

The measured S-parameters for the structure with side plates confirm the broadband nature of the structure. Theinsertion loss is somewhat high because ordinary FR4 substrate was used.


Engineering cont..


SatelliteEngineering (SEC)

CentreThe research focus of the Centre covers

• The design and development of novel low earth orbit(LEO) micro-satellite missions, in collaborations with otherwell known research centers and universities

• The design and development of innovative applicationsfor low earth orbit micro-satellites both in Singapore andabroad

• Facilitating and promoting the use of LEO satellite servicesin Singapore and the region. Examples of these are remotesensing, mobile satellite communications and locationsensing, satellite based data acquisition and messaging.

The current priority of the centre is the X-Sat project. This is aLEO micro-satellite designed for earth observation/imaging,mobile communications and on-board data processingexperiments. The projected completion date is 2008. TheCentre has been developed from the basics with the entire X-Sat micro-satellite design, development and production phasesbeing conducted in-house. Research, design, development,production and deployment of X-Sat are all conducted underone roof in the centre.

The joint X-Sat micro-satellite project with DSO-NL is theflagship project of the joint Centre for Research in SatelliteTechnologies (CREST). The centre has been focusing on thefollowing key areas:

New space bus architectural design for enhancedinteroperation between space and ground data systems andon-board autonomy

Fault tolerant and high performance data processingsystem designs for the on-board data handling system – faulttolerant parallel processing unit for on-board data processing,micro-electronic system-on-chip design for fault toleranceand reliability

Novel satellite attitude and position sensors/actuators tomeet cost and performance criteria – on-board high dynamicGPS receivers and satellite navigation applications, Star trackers,Micro-thrusters, MEM and nano-technology applications etc.

New payload systems and applications for future missions– Free Space Optics for inter-satellite links, Satellite based dataacquisition and messaging

Novel and robust designs for micro- and nano-satellitespace bus components – Advanced power, controls andstructural components.

XSAT Mission Ground Control Station


SatelliteEngineering Centre (SEC) cont..

Solid State Recorder (SSR) Development

Attitude Determination & Control Module Development

The research project on Compact High Frequency SurfaceWave Radar Demonstrator is headed by Professor Lu

Yi long of theDivision. This hasbeen focusing onthe feasibility of acompact HFSWRsystem and to

assess its performance in target detection and tracking.A compact HFSWR demonstrator has been designedincorporating many innovative design approaches. Thishas been integrated with a 16-element receiving arraywith a 90 meter aperture span and active antennaelements with heights less than 2 meters. Both thetransmitter and receiver subsystems have a digital structureand the transmitting waveform is programmable.Extensive field trials have been conducted and manypositive results have been obtained. The maximum

detection and tracking range for both ship and aircrafttargets can be up to 130 km. With comparison of groundtruth obtained by GPS, the range measurement precisionis less than 400 meters and the target bearingmeasurement precision is around 1 degree. Severaladvanced signal processing techniques including adaptivebeamforming, super-resolution and time-frequency distributionh a v e a l s o b e e nd e v e l o p e d a n dsuccessfully applied tot h e r a w d a t ap r o c e s s i n g f o rsuppression of radiofrequency interference,ionospheric clutter andlightning impulsivenoise.

On-board-computer Module Development

Telemetry, Tracking & Control Module Development

GSM Signal Based Passive Radar

Typical ship targetsdetection plot in theenvironments of seac l u t t e r a n d R Finterferences

Radar Project


Cheng Tee HiangAssociate Professor

Optical communications andnetworking. Wirelesscommunications.

ArokiaswamiAlphonesAssociate Professor

Microwave photonics, Modelingof microwave and opticalintegrated circuits, EBGstructures

Chong Han Joo, PeterAssistant Professor

Wireless/Mobile communications

Chua Tai WeiAssistant Professor

Satellite communication

Erry GunawanAssociate Professor

Spread-spectrum, Channel-coding, Wireless and powerlinecommunications, Radiolocation,MIMO, UWB, Multiuser-detection

Fu Shiang, JeffreyAssociate Professor

Microwave and millimeter wavecircuits and systems , RFIC design

Gong Yi, JamesAssistant Professor

Space-time Coding and MIMOsignal processing

Guan Yong LiangAssociate Professor

Adaptive modulation, near-capacity coding, cross-layeroptimization, channel modeling,digital watermarking

Koh Soo NgeeProfessor

Speech analysis and enhancement.Blind source separation. Joint source-channel coding. Distributed sourcecoding.

Law Choi LookAssociate Professor

UWB circuits, Channelmeasurements and modelling,RFID, Wireless networks

Lee Ching KwangAssociate Professor

Modelling of frequency selectivesurfaces

Lee Yee HuiAssistant Professor

Channel characterisation,Antenna design,Computationalelectromagnetics,Evolutionarytechniques, EMC/EMI

Li Kwok HungAssociate Professor

Mobile communication, Spread-spectrum communication, Signalprocessing for communications,Coding theory

Lu ChaoAssociate Professor

WDM optical transmissionsystems, Optical fibre devicesand applications, Opticalnetworks

Lu YilongAssociate Professor

Radars, antennas, array processing,microwave devices, computationalelectromagnetics, evolutionaloptimization

Ma MaodeAssistant Professor

Wireless networking, Opticalnetworking, Performance evaluationof networks, MAC protocols

Narayana SwamyNagarajanAssistant Professor

Satellite Mission analysis andoperations, Orbit & attitudedetermination and control, GPSNavigation

Oh Soon HuatAssociate Professor

Wireless communication fading,Computer and communicationnetworks, CDMA systems

Sanjay Kumar BoseAssociate Professor

Performance modelling, Analysisand Simulation of ComputerNetworks, Optical networks,Queuing systems

MembersStaff

Ng Chee HockAssociate Professor

Network modeling &performance analysis. Broadbandnetworks & QoS issues.


Sheel AdityaAssociate Professor

Photonic microwave systems;Novel printedguiding/radiating structures;Printed antennas

Ser WeeAssociate Professor

Sensor array / BeamformingTechniques, Channel estimation/ Equalization, Brain signalanalysis.

Shen ZhongxiangAssociate Professor

Antennas, Computationalelectromagnetics, Analysis &design of microwavecomponents and devices

Shum PingAssociate Professor

Optical communications

Soong Boon HeeAssociate Professor

Mobility, Optimisation for wireless& Sensor networks, Modelling andQoS control.

Tan Eng LeongAssistant Professor

Computational methods formultilayered electromagnetics,optics, acoustics, RF/MicrowaveIC, SAW/BAW

Tan Soon HieAssociate Professor

Satellite ground system and Spaceinternet, Microwave circuits andAntenna

Tan Soon YimAssociate Professor

Indoor wireless LAN, Cellular ormicrocellular communications

Teh Kah ChanAssociate Professor

Interference suppression, Multiuserdetection, Signal processing forcommunications

Vimal Kishore DubeyAssociate Professor

Coding, modulation and spreadspectrum techniques for mobileand wireless communications

Xiao GaoxiAssistant Professor

Optical and wireless networking,network security, complex networks

Zhang LirenAssociate Professor

Network security, Communicationnetworks, Switching/Routingalgorithm, QoS, Network modeling

Zhong WendeAssociate Professor

Optical communication systemsand networks, Photonic packetswitching

Zhu LeiAssociate Professor

Planar filters, Planar antennas,Periodic structures, Numericaltechniques, Numerical de-embedding

MembersStaff


Engineering cont..


MEng Theses Completedin 2005

PROJECT TITLE STUDENT SUPERVISOR /CO-SUPERVISOR

A hybrid FD-Monm technique for predicting shielding Feng Chao Shen Zhongxiangeffectiveness of metallic enclosures with apertures

Novel design of planar printed antennas with enhanced Fu Rong Zhu Leiperformance

Performance analyses of coherent fast FHSS/MPSK systems Kang Jinjun Teh Kah Chanover non-fading and fading channels withpartial band noise jamming and AWGN

Design and analysis of optical metropolitan networks Lian Ziwen Zhong Wende / Wang Yixin (ICR)

Study on High Frequency Measurement of Dielectric Lim Ying Ying Arokiaswami AlphonesProperties /Mihai Dragos Rotaru -

IME

Modeling of holey fiber using boundary element method Lou Junjun Lu Chao

Characterization of quality of service parameters for DTV Peh Beng Yeow Soong Boon Heereception in Singapore

A heuristic approach by tabu search for resource Peng Yanjie Soong Boon Heeallocation in communication networks

Detection improvement for anti-collision radar Qu Yaowen Fu Shiang, Jeffrey

Real-time positioning implementation via GPS code Shi Danhong Law Choi Lookphase and carrier phase measurements.

Miniaturized planar RF integrated filters with good Shi Huamin Zhu Leiharmonic suppression

Spatial periodic array with frequency- selective bandpass Teo Peng Thian Lee Ching Kwangresponse for GPS and DCS1800 mobile communications

Modeling and optimization of photonic crystal fibres Wang Yifei Lu Yilon

Printed wire antennas for wireless communication Zhang Yingbo Zhu Lei

Ku/Ka band mixers development for satellite communication Zhou Jiaoyun Fu Shiang, Jeffreysystem

Channel equalizer design for ADSL transceivers Zhu Pengye Dubey, V K


Engineering cont..


PROJECT TITLE STUDENT SUPERVISOR /CO-SUPERVISOR

Laser Induced Splicing of Photonic Crystal and Standard Chong Joo Hin (Ms) Rao M KSingle Mode Fibres

Performance analysis of MC-CDMA systems Hou Zhihua Dubey, V Kover frequency-selective fading channels

Design and analysis of medium access control protocols Huang Xiaohong (Ms) Ma Maodein WDM optical networks

Printed periodic waveguide Structures: Full-wave Kshetrimayum Zhu Lei Characterization Guided wave Characteristics Rakhesh SinghApplications

Protocol design and performance analysis for mobile Leng Supeng Zhang Liren / ad hoc networks Subramanian K R

Near-optimum decoding and performance Ling Cong Li Kwok Hungbounds for multiple -antenna communications

Analysis and modeling of laser diodes for WDM system Liu Hairong Shum Ping

Analysis of nonlinear fiber coupler Liu Min Shum Ping

Planar electromagnetic bandgap structures and Mohammad Karmakar Nemai Capplications Nurunnabi Mollah

Smart Antenna for 3G and future wireless Sun Chen Arokiaswami communications: Algorithms and Implementations Alphones

Raman effect in WDM systems Ta ng Ming Shum Ping

Adaptive rate control for video compression and Wei Jun Soong Boon Heetransmission over fading channel in wireless networks

Scalable Quality of Services (QoS) over broadband Zaw Min Naing Zhang Lireninternet and next generation mobile network

Performance analysis and enhancement of multicarrier Zhang Keli Guan Yong Liangtransmission systems

Wireless network performance evaluation: Zhang Yan Soong Boon HeeLink unreliability and parameter sensitivity

PhD Theses Completedin 2005


Engineering cont..


SelectedPublications 2005

1. B Chen, S K Bose and W D Zhong, “Priority Enabled Dynamic Traffic Grooming,” IEEE Commu. Letters, Vol. 9,No. 4, pp. 366-368, Apr 2005.

2. B Zheng and Z Shen, “Effect of a finite ground plane on microstrip-fed cavity-backed slot antennas,” IEEE Trans.on Antennas and Propagation, Vol. AP-53, no.2, pp.862-865, Feb 2005.

3. C Feng and Z. Shen, “A hybrid FD-MoM technique for predicting shielding effectiveness of metallic enclosureswith apertures,” IEEE Trans. on Electromagnetic Compatibility, Vol.EMC-47, no.3, pp.456-462, 2005.

4. C H You, S N Koh and R Susanto, "Beta-Order MMSE Spectral Amplitude Estimation for Speech Enhancement,"IEEE Trans. on Speech and Audio Processing, Vol.13, No.4, pp. 457-486, July 2005.

5. C H You, S N Koh and S Rahardja, "An Invertible Frequency Eigendomain Transformation for Masking-Based Subspace Speech Enhancement," IEEE Signal Processing Letters, Vol. 12, No. 5, pp. 461-464, May 2005.

6. C Ling, W H Mow, K H Li and Alex C Kot, "Multiple-antenna differential lattice decoding," IEEE Journal on Selected Areas in Communications, USA, Vol. 23, pp. 1821-1829, Sept. 2005.

7. C Yuen, Y L Guan, T T Tjhung, “Quasi-Orthogonal STBC with Minimum Decoding Complexity”, IEEE Transactionson Wireless Communications, Vol.4, No.5, pp. 2089 - 2094, Sep 2005.

8. C Yuen, Y L Guan, T T Tjhung, “Single-Symbol-Decodable Differential Space-Time Modulation Based on QO-STBC”, accepted, IEEE Trans. on Wireless Communications.

9. C Zhu, W S Qi and W Ser, “Predictive Fine Granularity Successive Elimination for Fast Optimal Block MatchingEstimation“, IEEE Trans. on Image Processing, Vol. 14, No. 2, pp 213-221, Feb 2005.

10. E L Tan, “Hybrid-matrix algorithm for rigorous coupled-wave analysis of multilayered diffraction gratings,” accepted, J. Mod. Opt.

11. E L Tan, “Simplified Graphical Analysis of Linear Three-Port Stability,” IEE Proc. Microw. Antennas Propag., Vol. 152, No. 4, pp. 209-213, 2005.

12. G S Poo and Y Zhou, “A New Multicast Wavelength Assignment Algorithm in Wavelength-Routed WDM Networks" accepted, IEEE Journal of Selected Areas in Communications (Optical Communication Networks).

13. G X Ning, S Aditya, P Shum, L H Cheng, Y D Gong, and C Lu, “Tunable photonic microwave bandpass filter using phase modulation and a chirped fibre grating in a sagnac loop,” IEEE PTL, Vol. 17, No. 9, pp. 1935 - 1937, Sept 2005.

14. G X Ning, S Aditya, P Shum, N Liu, Y D Gong and C Lu, “Tunable Microwave Filter Using a Hi-Bi Fibre and aDGD Element”, Journal of the Optical Society of America – A, Vol. 22, Issue 5, pp. 913-916, May 2005.

15. G. Zhang, G. Bi and L. Zhang, “Group-Blind Inter-Symbol Multi-User Detection for Downlink CDMA with Multi-Path,” IEEE Trans. on Wireless Communications,˚Vol. 4, No. 2, pp. 434 – 443, 2005.


Engineering cont..



16. H Fu, K H Li and P Y Kam, “Technique for analysing error probability of /2-wedge-shaped decision region,” IEEElectronics Letters, UK, Vol. 41, No. 5, pp. 283-285, Mar 2005.

17. H Wang and G S Poo, “Blocking performance of the hose model and the pipe model for VPN service provisioningover WDM optical networks”, OSA Journal of Optical Networking, Vol. 3, No. 8, USA, pp. 623-635, Aug 2004.

18. H. Meng, Y.L. Guan, S. Chen, “Channel Model of Broadband Power Line Communication Network with RingTopology”, IEE Proceedings - Generation, Transmission & Distribution, accepted in 2005.

19. J Y Yu and P H J Chong, “A Survey of Clustering Schemes for Mobile Ad Hoc Networks,” IEEE Commun. Surveysand Tutorials, Vol. 7, No. 1, pp. 32-48, First Quarter 2005.

20. K Li and YL Lu, "Electromagnetic field generated by a horizontal electric dipole near the surface of a planarperfect conductor coated with a uniaxial layer," IEEE Trans. on Antennas and Propagation, Vol. 53, No. 10,pp.3191- 3200, Oct 2005.

21. K Li, YL Lu, and MH Li, "Approximate formulas for lateral electromagnetic pulses from a horizontal electricdipole on the surface of one-dimensionally anisotropic medium," IEEE Trans. on Antennas and Propagation,Vol. 53, No. 3, pp. 933-937, Mar 2005.

22. K Y See, P L So, A Kamarul and E Gunawan, “Radio Frequency Common Mode Noise Propagation Model forPower Line Cable”, IEEE Trans. on Power Delivery, Vol. 20, No. 4, USA, pp. 2443-2449, Oct 2005.

23 K. Lu, G. Xiao, and I. Chlamtac, “Analysis of Blocking Probability for Distributed Lightpath Establishment in WDMOptical Networks,” IEEE/ACM Trans. on Networking, Vol. 13, No. 1, pp. 187-197, Feb 2005.

24. L Cheng, S Aditya and A Nirmalathas, “An exact analytical model for dispersive transmission in microwave fibre-optic links using Mach-Zehnder external modulator,” IEEE PTL, Vol. 17, No. 7, pp. 1525-1527, July 2005.

25. L Su and C Lu, “Multimode Fiber Grating Based Fiber Lasers and Optical Sensors”, Conference on Optical FiberCommunication (OFC-2005), March 2005, Anaheim, USA, OME16

26. L Su, C Lu, J Hao, Z Li and Y Wang, “Design of Wavelength-switching Erbium-doped fiber lasers with a MultimodeFiber Bragg Grating Using Spatial-mode Excitation and Selection Techniques” IEEE Photonics TechnologyLetters, Volume 17, No. 2, pp. 315 – 317, Feb 2005.

27. L Zhang, B H Soong and W Xiao, “Two Phase Coding Multi-channel MAC Protocol with MAI Mitigation forMobile Ad Hoc Networks”, IEEE Communication Letters, Vol. 8, No. 9, pp. 1-3, Sept 2004.

28. M D Huang and S Y Tan, "Spheroidal phase mode processing for antenna arrays", Journal of Electromagnetic Waves and Applications (JEWA), Vol. 19, No. 11, 2005, pp. 1431-1442

29. M Ma and E Gunawan, “A MAC Protocol for Multimedia Traffic in Slotted CDMA Wireless CommunicationSystem”, Wireless Personal Communications, Vol. 33, No. 2, Netherlands, pp. 153-176, Apr 2005.

30. M Ma and S Y Low, “Adaptive Polling Interval Scheduling to Support Real-Time Service in Bluetooth Networks,”Internat ional Journal of Wireless and Mobi le Computing, accepted for publ icat ion.


Engineering cont..



31. M Ma, Y Zhu, and T H Cheng, “A Systematic Scheme for Multiple Access in Ethernet Passive Optical AccessNetworks,” IEEE/OSA Journal of Lightwave Technology, accepted for publication.

32. M Yang and P H J Chong, “Dynamic Channel Partitioning with Flexible Channel Combination for TDMA-basedCellular Systems,” IEEE Trans. Wireless Commun., Vol. 4, No. 5, Sept 2005.

33. M Zhang, H Lan and W Ser, “On Comparison of Online Secondary path Methods with Auxiliary Noise”, IEEETrans. Speech and Audio Processing, Vol. 13, No. 4, pp. 618-628, Jul 2005.

34. M. Yan and P. Shum, “Improved air-silica photonic crystal with a triangular air-hole arrangement for hollowcore photonic ban” Optics Letters, Vol. 30, No.15, pp.1920 – 1922, Aug 2005.

35. Maode Ma, L Liu and T. H. Cheng, “Adaptative scheduling for differentiated services in EPON,” Journal of Opticalnetworking, Vol. 4, Issue 10, pp.661-670, Oct 2005.

36. N Karmakar, M Mollah, S Padhi and Jeffrey S Fu, “PBG Assisted Shared Aperture Dual-Band Aperture Coupled Patch Antenna for Satellite Communication”, Microwave and Optical Technology Letters, Vol. 46, No. 3, USA, August 2005, pp. 289-292˚

37. S H Oh and K H Li, "BER Performance of BPSK Receivers over Two-Wave with Diffuse Power Fading Channels",IEEE Trans. Wireless Comm. 2004, Vol. 4, No. 4, pp.1448-1454, Jul 2005.

38. Q Sun, S Y Tan and K C Teh, “Analytical formulae for path loss prediction in urban microcellular environments,”IEEE Trans. Vehic. Technol., Vol. 54, pp. 1251-1258, Jul 2005.

39. Q Sun, S Y Tan and K C Teh, “Analytical Formulae for Path Loss Prediction in Urban Street –Grid Microcellular Environments,” IEEE Trans. Vehicular Technology, Vol. 54, No. 4, USA, pp. 1251-1258, Jul 2005.

40. R S Kshetrimayum and L Zhu, “Guided-wave characteristics of waveguide based periodic structures loaded with various FSS strip layers,” IEEE Trans Antennas and Propagation, Vol. 53, No. 1, pp.120-124, Jan 2005.

41. S Baskar, A Alphones, P N Suganthan, N Q Ngo and R T Zheng, “Design of optimal length low dispersion FBG filter using covariance matrix adapted evolution”, IEEE Photonics Tech. Lett. Vol.17, pp. 2119-2121, Oct 2005.

42 S H Oh and K H Li, “BER performance of BPSK receivers over two-wave with diffuse power fading channels,” IEEE Transactions on Wireless Communications, USA, Vol. 4, pp. 1448-1454, Jul 2005.

43 S Sun and L Zhu, “Stopband-enhanced and size-miniaturized lowpass filters using high-impedance propertyof offset finite-ground microstrip line,” IEEE Trans Microwave Theory and Techniques, Vol. 53, No. 9, pp. 2844-2850, Sept 2005.

44. S Y Huang and Y H Lee, “A Tapered Small-Size EBG Microstrip Bandstop Filter Design with Triple EBG Structures,”Microwave and Technology Letters, Vol. 34, No. 2, Jul 2005.

45. S Y Huang and Y H Lee, “Compact U-shaped Dual Planar EBG Microstrip Lowpass Filter,” IEEE Trans. on MicrowaveTheory and Techniques, Vol. 53, No. 11, Nov 2005.


Engineering cont..



46. S Y Huang and Y H Lee, “Tapered Dual-Plane Compact Electromagnetic Band-Gap Microstrip Filter Structures,”IEEE Trans. on Microwave Theory and Techniques, Vol. 53, No. 9, Sept 2005.

47. S. L. Chen and P H J Chong, “Capacity Improvement with Dynamic Channel Assignment and Reuse Partitioningin Cellular Systems,” accepted, Journal of Commun. and Network.

48. S. Leng and L. Zhang, “An Efficient Broadcast Relay Scheme in MANETs”, Journal of Computer Communications, Vol. 28, No. 5, pp. 467 – 476 2005.

49. S. Shen, G. Xiao, and T.-H. Cheng, “Benefits of Advertising Wavelength Availability in Distributed LightpathEstablishment,” accepted, Computer Networks.

50. T. Gan, K. Ma and L. Zhang, “Dual-Plan Bandwidth Smoothing for Layered-Encoded Video”, IEEE Trans. of Multimedia, Vol. 7, No. 2, pp. 379 – 392, 2005.

51. Teck Yoong Chai, Tee Hiang Cheng, Yabin Ye, Qiang Liu, “Inband Crosstalk Analysis of Optical Cross-ConnectArchitectures,” Journal of Lightwave Technology 23 (2), pp. 688-701, 2005.

52. TT Zhang, HT Hui, and YL Lu, "Compensation for the mutual coupling effect in the ESPRIT direction findingalgorithm by using a more effective method," IEEE Trans. on Antennas and Propagation, Vol. 53, No. 4, pp. 1552-1555, Apr 2005.

53. W D Zhong and Z Zhang, “P-cycle-based protection provisioning in optical WDM networks,” IEICE, Trans.Commu. Vol. E88-B, no. 5, pp.1921-1926, May 2005 (invited paper).

54. W Q Luo, S Y Tan and B T Tan, "Effects of the Ground on Power-Line Communications", IEEE Trans. MicrowaveTheory and Techniques, Vol.53, No. 10, pp. 3191-3198, Oct 2005.

55. W Wang, Y Lu, Jeffrey S Fu and Y Xiong, “Particle Swarm Optimization and Finite Element Based Approach forMicrowave Filter Design”, IEEE Trans. on Magnetics, Vol. 41, No. 5, USA, pp. 1800-1803, May 2005.

56. W. Fu and E L Tan, “Stability and Dispersion Analysis for Higher Order 3-D ADI-FDTD Method,” IEEE Trans. AntennasPropag., Nov 2005.

57. W.J. Lai, P. Shum and L.N. Binh, “NOLM-NALM fiber ring laser”, IEEE J. of Quantum Electronics, Vol.41, No.7, pp.986– 993, Jul 2005.

58 Wang Y, Cheng T H, Lim M H, “An Enquiry-Based Dynamic Service Provisioning Approach for Overlay IP-over-Optical Networks,” IEEE Communications Letters, Vol. 9, No. 9, pp 841-843, Sept 2005.

59. X B Liu and S N Koh, "Iterative Joint Source-Channel Decoding with Combined A Priori Information of Sourceand Channel," IEEE Communications Letter, Vol.9, No. 4, pp. 355-357, Apr 2005.

60. X F Luo, A Qing* and C K Lee, “Application of Differential Evolution Strategy to the Design of Frequency SelectiveSurfaces”, International Journal of RF and Microwave Computer-Aided Engineering, USA, Vol.15, No.2, pp.173-180, Mar 2005.


Engineering cont..



61. X F Luo, P T Teo, A Qing* and C K Lee, “Design of Double-Square-Loop Frequency Selective Surfaces usingDifferential Evolution Strategy Coupled with Equivalent Circuit Model”, Microwave and Optical TechnologyLetters, Vol.44, No.2, pp.159-162, Jan 2005.

62. X Huang and M Ma, “An Efficient Scheduling Algorithm for Real-Time Traffic on WDM Passive Star OpticalNetworks,” accepted, IEEE/OSA Journal of Lightwave Technology.

63. X Ying and A Alphones, “Propagation Characteristics of Complementary Split Ring Resonator (CSRR) BasedEBG Structure”, Microwave and Optical Tech. Letters, Vol. 47, No.5, pp. 409-412, Dec 2005.

64. X. Pan and G. Xiao, “Heuristics for Diverse Routing in Wavelength-Routed Networks with Shared Risk LinkGroups,” accepted, Photonic Network Communications.

65. Y H Ma, P L So and E Gunawan, “Performance Analysis of OFDM Systems for Broadband Power LineCommunications Under Impulsive Noise and Multipath Effects”, IEEE Trans. on Power Delivery, Vol. 20,No. 2, USA, pp. 674-682, Apr 2005.

66. Y Han and K C Teh, “Error probabilities and performance comparisons of various FFH/MFSK receivers withmultitone jamming,” IEEE Trans. Commun., Vol. 53, pp. 769-772, May 2005.

67. Y Han and K C Teh, “Performance study of suboptimum maximum-likelihood receivers for FFH/MFSK systemswith multitone jamming over fading channels,” IEEE Trans. Vehic. Technol., Vol. 54, pp. 82-90, Jan 2005.

68. Y Wang, T H Cheng, S K Bose, “An Enquiry-based Dynamic Service Provisioning Approach for Overlay IP-over-Optical Networks,” Photonic Network Communications, Vol. 10, No. 3, pp. 347-360, Nov 2005.

69. Y Xiong, T Teo and Jeffrey S Fu, “Direct Extraction of Equivalent Circuit Parameters for Balun on Silicon Substrate”,IEEE Trans. on Electron Devices, Vol.52, No.8, USA, pp. 1915-1917, Aug 2005.˚

70. Y Y Lim, M D Rotaru, A Alphones and A P Popov, “Simple and improved dielectric parameter extraction of thinorganic packaging materials using open ended coaxial line technique” , IEE Proc. Pt H, Vol. 152, pp. 214-220,Aug 2005.

71. Y Zhang and B H Soong, "The Effect of Unreliable Wireless Channel on the Call Performance in Mobile Network",IEEE Trans. on Wireless Communications, Vol.4, No. 2, pp. 653-661, Mar 2005.

72. Y Zhang and B H Soong, “Handoff Dwell Time Distribution Effect on Mobile Network Performance”, IEEETrans. on Vehicular Technology, Vol. 54, No. 4. pp. 1500-1508, 2005.

73. Y Zhu, P. Shum, X.Y. Chu, C.H. Tan and C. Lu, “Resonance-temperature-insensitive phase-shifted long-periodfiber gratings induced by surface deforms characteristics”, Optics Letters, Vol.30, No.14, pp. 1788 – 1790,Jul 2005.

74. Z Li, C Lu, Y Wang and G Li, “In-Service Signal Quality Monitoring and Multi-Impairment Discrimination Basedon Asynchronous Amplitude Histogram Evaluation for NRZ-DPSK Systems”, IEEE Photonics Technology Letters,Vol. 17, No. 9, pp.1998-2000, Sept 2005.


Engineering cont..


List of Acronyms

CPW-fed Co-planar waveguideCREST Centre for Research in Satellite

TechnologiesDSO-NL DSO National LaboratoryDTV Digital televisionFBGs Fiber Bragg gratingsGMPLS Generalized Muli-protocol Label SwitchingHFSWR High frequency surface wave radarIME Institute of micro-electronicsLEO Low Earth OrbitMAC Medium access controlMANET Mobile ad hoc networkMCAP Microwave Circuits, Antennas and

PropagationMCSP Modulation, Coding and Signal Processing

MDC-QOSTBC Quasi-orthogonal space-time block codewith minimum decoding complexity

MPLS-TE Multi-protocol label switching – Technology

MRWA Multicast routing and wavelength assignment

NTRC Network Technology Research CentreOFDM Orthogonal frequency division

multiplexingQoS Quality of servicePWTC Positioning and Wireless

Technology CentrePCFs Photonic Crystal FibersRF Radio FrequencyRFID Radio frequency identificationSEC Satellite Engineering CentreUWB Ultra widebandWMAN Wireless metropolitan area networkWLAN Wireless local area networkWPAN Wireless personal area network


75. Z Shen and C Feng, “A new dual-polarized broad-band horn antenna,” IEEE Antennas and Wireless PropagationLetters, Vol. 4, pp.270-273, 2005

76. Z Zhang, W D Zhong and S K Bose, “Dynamically survivable WDM network design with p-cycle-based PWCE,”IEEE Commu. Letters, vol. 9, no. 8, pp. 756-758, Aug 2005.

77. Z. Li and W Ser, “An Adaptive WPE Multi-user Detector”, IEEE Signal Processing Letters, Vol. 12, No. 4, pp. 305-308, Apr 2005.

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