EC8395 Communication Engineering Notes
EC8395 COMMUNICATION ENGINEERING
UNIT III DIGITAL MODULATION AND TRANSMISSION
Phase shift keying – BPSK, DPSK, QPSK – Principles of M-ary
signaling M-ary PSK & QAM –
Comparison, ISI – Pulse shaping –
Duo binary encoding – Cosine filters – Eye pattern, equalizers
UNIT IV INFORMATION THEORY AND CODING
Measure of information – Entropy – Source coding theorem –
Shannon–Fano coding, Huffman
Coding, LZ Coding – Channel capacity
– Shannon-Hartley law – Shannon's limit – Error control
codes –
Cyclic codes, Syndrome calculation – Convolution Coding, Sequential
and Viterbi
decoding
UNIT V SPREAD SPECTRUM AND MULTIPLE ACCESS
PN sequences – properties – m-sequence – DSSS – Processing
gain, Jamming – FHSS –
Synchronisation and tracking – Multiple
Access – FDMA, TDMA, CDMA,
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