Title :
APP decoding of nonbinary SPC product codes over discrete memoryless channels
Author :
Caldera, Manora ; Zepernick, Hans-Jürgen
Author_Institution :
Australian Telecommun. Cooperative Res. Centre, Perth, WA, Australia
fDate :
23 Feb.-1 March 2003
Abstract :
Error control coding techniques are widely used in most digital communication systems in order to protect messages against transmission errors. Soft decision decoding such as a posteriori probability (APP) decoding is often used in improving the bit error rate performance. APP decoding of nonbinary single parity check (SPC) product codes is considered when used over discrete memoryless channels. Iterative decoding based on horizontal and vertical decoding of component codes is employed. The soft-outputs obtained from the horizontal decoding are used as the a priori information in the vertical decoding. A computationally efficient decoding procedure is advised in decoding component codes, using a trellis-based forward-only recursion algorithm.
Keywords :
channel coding; digital communication; error correction codes; iterative decoding; memoryless systems; parity check codes; probability; product codes; trellis codes; APP decoding; a posteriori probability; bit error rate performance; conditional spectral coefficient; decoding component code; digital communication systems; discrete memoryless channels; error control coding technique; horizontal decoding; iterative decoding; linear block codes; nonbinary SPC product codes; single parity check; soft decision decoding; soft output; spectral domain; transmission errors; trellis based forward only recursion algorithm; vertical decoding; Australia; Bit error rate; Digital communication; Error correction; Galois fields; Iterative algorithms; Iterative decoding; Memoryless systems; Product codes; Protection;
Conference_Titel :
Telecommunications, 2003. ICT 2003. 10th International Conference on
Print_ISBN :
0-7803-7661-7
DOI :
10.1109/ICTEL.2003.1191601
