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Thursday, February 3, 2011

Learn Digital Communications through lecture videos





Download/Source url :
http://www.youtube.com/watch?v=QHDxbbc1GWs&feature=player_embedded

By Dr.Ranjan Bose, Department of Electrical Engineering, IIT Delhi.


DIGITAL COMMUNICATIONS SYLLABUS :


Source :http://jntuk.edu.in
UNIT I
PULSE DIGITAL MODULATION : Elements of digital communication systems, advantages of digital
communication systems, Elements of PCM: Sampling, Quantization & Coding, Quantization error, Compading
in PCM systems. Differential PCM systems (DPCM).

UNIT II
DELTA MODULATION : Delta modulation, its draw backs, adaptive delta modulation, comparison of PCM and
DM systems, noise in PCM and DM systems.

UNIT III
DIGITAL MODULATION TECHNIQUES : Introduction, ASK, FSK, PSK, DPSK, DEPSK, QPSK, M-ary PSK,
ASK, FSK, similarity of BFSK and BPSK.

UNIT IV
DATA TRANSMISSION : Base band signal receiver, probability of error, the optimum filter, matched filter,
probability of error using matched filter, coherent reception, non-coherent detection of FSK, calculation of error
probability of ASK, BPSK, BFSK,QPSK.

UNIT V
INFORMATION THEORY : Discrete messages, concept of amount of information and its properties. Average
information, Entropy and its properties. Information rate, Mutual information and its properties,

UNIT VI
SOURCE CODING : Introductions, Advantages, Shannon’s theorem, Shanon-Fano coding, Huffman coding,
efficiency calculations, channel capacity of discrete and analog Channels, capacity of a Gaussian channel,
bandwidth –S/N trade off.

UNIT VII
LINEAR BLOCK CODES : Introduction, Matrix description of Linear Block codes, Error detection and error
correction capabilities of Linear block codes, Hamming codes, Binary cyclic codes, Algebraic structure,
encoding, syndrome calculation, BCH Codes.

UNIT VIII
CONVOLUTION CODES : Introduction, encoding of convolution codes, time domain approach, transform
domain approach. Graphical approach: state, tree and trellis diagram decoding using Viterbi algorithm.

TEXT BOOKS :
1. Digital communications - Simon Haykin, John Wiley, 2005
2. Principles of Communication Systems – H. Taub and D. Schilling, TMH, 2003

REFERENCES :
1. Digital and Analog Communication Systems - Sam Shanmugam, John Wiley, 2005.
2. Digital Communications – John Proakis, TMH, 1983. Communication Systems Analog & Digital – Singh &
Sapre, TMH, 2004.
3. Modern Analog and Digital Communication – B.P.Lathi, Oxford reprint, 3rd edition, 2004.
Learn Digital Communications through lecture videos Reviewed by creativeworld9 on 9:44 AM Rating: 5 Download/Source url : http://www.youtube.com/watch?v=QHDxbbc1GWs&feature=player_embedded By Dr.Ranjan Bose, Department ...

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