Title :
Reconfigurable two-stage trellis Reed-Solomon decoding
Author :
Kosmach, James J. ; Wicker, Stephen B.
Author_Institution :
Motorola Inc., Austin, TX, USA
Abstract :
An improved two-stage trellis decoder for Reed-Solomon (RS) codes is presented. This decoder uses reliability information as a basis for reordering the symbols in the received word. The coset trellis for the resulting code has the same structure and complexity as the standard two-stage trellis decoder, but an efficient means can now be implemented for the selection of the sub-trellis that contains the best path prior to decoding. Simulation results for the RS(7, 3) code are presented for AWGN and Rayleigh fading channels
Keywords :
AWGN channels; Rayleigh channels; Reed-Solomon codes; decoding; trellis codes; AWGN; RS(7, 3) code; Rayleigh fading channels; Reed-Solomon decoding; coset trellis; received word; reliability information; sub-trellis best path; symbol reordering; two-stage trellis decoder; AWGN; Character generation; Code standards; Computer simulation; Fading; Galois fields; Maximum likelihood decoding; Reed-Solomon codes; Viterbi algorithm;
Conference_Titel :
Communications, 1999. ICC '99. 1999 IEEE International Conference on
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-5284-X
DOI :
10.1109/ICC.1999.767981
