Title :
New rate-compatible punctured convolutional codes for Viterbi decoding
Author_Institution :
LTC Ltd., Hong Kong, China
fDate :
12/1/1994 12:00:00 AM
Abstract :
New good rate-P/(P+δ) rate-compatible punctured convolutional (RCPC) codes for 2⩽P⩽7 and 1⩽δ⩽(n-1)P were found and tabulated, These codes have been determined by iterative search based upon a criterion of maximizing the free distance and were generated by periodically puncturing their rate-1/n mother codes of memory 2⩽M⩽6 and n=2. These codes are expected to find their applications in unequal error protection schemes employing Viterbi decoding
Keywords :
Viterbi decoding; convolutional codes; error correction codes; iterative methods; trellis codes; Viterbi decoding; applications; decoding; free distance; iterative search; memory; rate-compatible punctured convolutional codes; unequal error protection schemes; Additive white noise; Convolutional codes; Data communication; Demodulation; Digital communication; Error correction codes; Gaussian noise; Iterative decoding; Speech; Viterbi algorithm;
Journal_Title :
Communications, IEEE Transactions on
