Channel Coding Part II - Digital Communication Chapter 6 & 7 - Unik
Channel Coding Part II - Digital Communication Chapter 6 & 7 - Unik
Channel Coding Part II - Digital Communication Chapter 6 & 7 - Unik
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Effective code rate<br />
<strong>Channel</strong> <strong>Coding</strong><br />
<strong>Part</strong> <strong>II</strong><br />
Ola Jetlund<br />
◮ Initialize the memory before encoding the first bit<br />
(all-zero)<br />
◮ Clear out the memory after encoding the last bit<br />
(all-zero)<br />
◮ Hence, a tail of zero-bits is appended to data bits.<br />
Introduction<br />
Linear Block Codes<br />
Hamming<br />
Convolutional Codes<br />
Example<br />
Decoding<br />
Decisions<br />
Viterbi<br />
data tail<br />
Encoder codeword<br />
◮ Effective code rate :<br />
◮ L is the number of data bits and k = 1 is assumed:<br />
R eff =<br />
L<br />
n(K + K − 1) < R c
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