National Workshop on Communication Systems

NWRTCS-2012

August 11, 2012 – August 12, 2012

A Report The two day national workshop entitled “National Workshop on Communication Systems- NWRTCS-2012” was held on August 11, 2012 and August 12, 2012 at Birbhum Institute of Engineering and Technology (BIET), Suri, Birbhum, West Bengal, India-731101. The program was organized by Department of Electronics and Communication Engineering BIET, Suri with Technical Sponsorship from IEEE ComSoc, Kolkata. The students of BIET, Suri and the outstation candidates from diverse field participated in this technical conference.

The Activities of Day-I

Chief Guest of NWRTCS-2012 being greeted by our Director

Inaugural ceremony of NWRTCS-2012 Participants registered for the Workshop and collected their kits. The inaugural program was started at 10:00 a.m. in the auditorium of BIET, Suri with several dignitaries on the dais. Dr. Bhabes Bhattacharya, Director, BIET and Patron of the workshop, Dr. Ajoy Kumar Ray, Vice-Chancellor, BESU, Chief Guest of the occasion , Prof.J.K.Sen, Department of ECE, BIET and there were other invited guests who also inaugurated the opening ceremony like Dr. Pravas Ranjan Sahu, Associate Professor, IIT, Guwahati, Prof. Aniruddha Chandra, Assistant Professor, NIT, Durgapur and Mr. Apurba Kumar Das, Deputy Director, Department of Telecommunication, West Bengal were all present in the occasion. The 3rd year ECE girl students welcomed the delegates by presenting flowers to them as a token of gratitude.

Bouquet presentation to the delegates by our 3rd yr ECE girl students

The Chief Guest and other invited dignitaries lighted the auspicious traditional lamp and declared the event open.

Lamp lightening ceremony

The occasion was graced by the person who hardly needs any introduction and who have made all of us proud by your distinguished work in numerous capacities, Dr. Ajoy Kumar Ray, Vice-Chancellor, BESU ,the Chief Guest of the occasion. Dr. Bhabes Bhattacharya, Director, BIET and Patron of the workshop, in his Inaugural address, welcome the invited dignitaries and offered a short Profile of the Institute, the heritage of Birbhum and the Institute’s prolonged commitment towards nurturing the creative inclination of the students.

Welcome address by Dr. Bhabes Bhattacharya

Prof. Ajoy Kumar Ray cheered the students crew through his informative and interactive talk.

Prof. J. K. Sen recapitulated the contribution fundamental concepts of current flow in Kirchoff’s current loop and Kirchoff’s Voltage loop.

Dr. A. Chandra behalf of IEEE ComSoc, Kolkata advocated the advantages of IEEE membership and their contributions in scientific and engineering studies.

The technical session was started thereafter with a series of illuminating lectures. Some of them are briefed below: In the first session Prof. Dr. Pravas Ranjan Sahu, Associate Professor, IIT, Guwahati, catered his lecture on Fundamentals of Wireless Communication and its applications.

The next session started soon after lunch where Mr. Apurba Kumar Das, Deputy Director, Department of Telecom, Govt. of W.B. presented a jocund talk on industrial fundamentals and applications of communication systems. In the third technical session, Dr. A. Chandra, Assistant Professor, NIT Durgapur, shared a technical lecture on Rayleigh Fading.

The Activities of Day-II

Lab Sessions – Session I

Date: 12.08.12 Time: 10.30AM-12.00PM

Title: Simulating Communication Systems with MATLAB

In this session, the goal is to introduce MATLAB, a general purpose mathematical tool, to the young audience. MATLAB is a very useful for developing simulation codes in communication engineering. The first half of this session is devoted to simulation of analog communication systems. The idea is explained through a simple case study, namely, simulation of amplitude modulated transmitter and receiver. Next, simulations of digital communication systems are discussed. The digital communication system is broken into functional blocks and BER values are simulated through the Monte Carlo procedure. In particular we’ll describe a MATLAB program that simulates binary phase shift keying (BPSK) at baseband over an additive white Gaussian noise (AWGN) channel. For realizing that, the effect of noise is represented in the baseband with Gaussian random samples added to each signal sample. The signal to noise ratio (SNR) is varied to show the effect of SNR on BER. Finally the theoretical BER, i.e.Q(sqrt(2*SNR)), Q(.) being the Gaussian Q function, is also plotted to show the correctness of simulation.

Lab Sessions – Session II

Date: 12.08.12 Time: 12.00PM-1.30PM

Title: Simulating Wireless Channels with MATLAB

Hardware prototyping of wireless systems is becoming more and more expensive and time consuming as the communication systems increase in sophistication and complexity. In fact, it would now usually be impossible to prototype all credible solutions to a given communication problem. With the various analytical models available in the current literature, a higher layer of abstraction can be achieved. These models, through the development of equations, can predict performance of digital wireless systems under various propagation conditions and design choices. However, the accuracy of such predictions might be questionable in absence of any validation technique. Computer simulation is generally the preferred method for such validations. In this session, we would learn how most fading models, addressed by various researchers, may be simulated by exploiting the relationship between the fading random variable (RV) and Gaussian RVs. Generation of Gaussian RVs are relatively easy in MATLAB environment as the software package provides an in-built function randn() for the purpose.

Valedictory Session and Vote of Thanks The chief Guest Dr. Ajoy Kumar Ray and other dignitaries were felicitated by Mrs. Mitra Chatterjee, HOD, ECE, BIET by a memento in the last session of the second day of the event.

The two day workshop ended with vote of thanks by the Convener Mrs.Ishita Sinha, Assistant Professsor, ECE, BIET. There were almost 250 participants in this two –day workshop including Faculty members, staff , students and 2 IEEE members.