DIGITAL COMMUNICATION (BEC503)

DIGITAL COMMUNICATION

Course Code BEC503 
CIE Marks 50
Teaching Hours/Week (L:T:P: S) 4:0:0:0 
SEE Marks 50
Total Hours of Pedagogy 50 Hours 
Total Marks 100
Credits 04 
Exam Hours 3 Hours
Examination type (SEE) Theory

Module-1

Bandpass Signals to Equivalent Lowpass: Hilbert Transform, Pre-envelopes, Complex envelopes of Band-pass

Signals, Canonical Representation of Bandpass signals.

Signalling over AWGN Channels- Introduction, Geometric representation of signals, Gram- Schmidt

Orthogonalization procedure, Conversion of the continuous AWGN channel into a vector channel , Optimum

receivers using coherent detection: ML Decoding, Correlation receiver, matched filter receiver.

Module-2

Digital Modulation Techniques: Phase shift Keying techniques using coherent detection: generation, detection

and error probabilities of BPSK and QPSK, M–ary PSK, M–ary QAM. Frequency shift keying techniques using

Coherent detection: BFSK generation, detection and error probability. BFSK using Noncoherent Detection,

Differential Phase Shift Keying.

Module-3

Information theory: Introduction, Entropy, Source Coding Theorem, Lossless Data Compression

Algorithms, Discrete Memoryless Channels, Mutual Information, Channel capacity, Channel Coding

Theorem, Information Capacity Law (Statement).

Module-4

Error Control Coding: Error Control Using Forward error Correction,

Linear Block Codes: Definitions, Matrix Descriptions, Syndrome and its properties, Minimum distance

Considerations, Syndrome Decoding, Hamming Codes.

Cyclic Codes: Properties, Generator and Parity Check Polynomial and matrices, Encoding, Syndrome

computation, Examples.

Module-5

Convolutional Codes: Convolutional Encoder, Code tree, Trellis Graph and State graph, Recursive systematic

Convolutional codes, Optimum decoding of Convolutional codes, Maximum Likelihood Decoding of

Convolutional codes: The Viterbi Algorithm, Examples.

Suggested Learning Resources:

Text Book

1. Simon Haykin, “Digital Communication Systems”, John Wiley & sons, 2014, ISBN 978-81- 265-4231-4.

Reference Books

1. B.P Lathi, Zhi Ding, “Modern Digital and Analog Communication Systems”,4th Edition, Oxford

University press, ISBN: 9780198073802, 2017

2. K Sam Shanmugam, “Digital and analog communication systems”, Wiley India Pvt. Ltd, 2017, ISBN:978-81-265-3680-1,.

3. K.N Hari Bhat, D. Ganesh Rao, “Information Theory and Coding”, Cengage Learning India Pvt Ltd, 2017,

ISBN: 93-866-5092-4,.