Title :
Distance based adaptive scaling in suboptimal iterative decoding
Author :
Martin, Philippa A. ; Taylor, Desmond P.
Author_Institution :
Dept. of Electr. & Electron. Eng., Canterbury Univ., Christchurch, New Zealand
fDate :
6/1/2002 12:00:00 AM
Abstract :
This article develops an alternative adaptive iterative Chase (1972) based decoding algorithm for block turbo/product codes. The decoder considers only a small subset of codewords, so that estimates of the extrinsic information are required in some cases. This article develops such an estimate based on code distance properties
Keywords :
AWGN channels; adaptive decoding; block codes; iterative decoding; memoryless systems; turbo codes; BPSK/QPSK; adaptive iterative Chase-based decoding algorithm; additive white Gaussian noise channel; block turbo codes; block turbo/product codes; code distance properties; codewords; distance based adaptive scaling; extrinsic information estimates; memoryless AWGN channel; suboptimal iterative decoding; AWGN; Additive white noise; Binary phase shift keying; Concatenated codes; Iterative algorithms; Iterative decoding; Parameter estimation; Pipelines; Product codes; Turbo codes;
Journal_Title :
Communications, IEEE Transactions on
DOI :
10.1109/TCOMM.2002.1010602
