Title :
Symbol-Wise Chase Decoding of q-ary Block Codes over BI-AWGN Channels
Author :
Cunha, Daniel C. ; Portugheis, Jaime ; Nascimento, Vagner V do
Author_Institution :
Center for Telecommun. Res., Univ. of Pernambuco, Recife, Brazil
fDate :
2/1/2011 12:00:00 AM
Abstract :
This letter investigates Chase decoding of q-ary block codes over binary input additive white Gaussian noise channels. Performances of bitwise and symbol-wise test pattern generation are compared. A simple algorithm for evaluating symbol reliability is proposed. Simulation results for Reed-Solomon codes show that the proposed symbol-wise algorithm has a better performance than a bitwise approach with no increase in overall decoding complexity.
Keywords :
AWGN channels; Reed-Solomon codes; binary codes; block codes; communication complexity; decoding; BI-AWGN channel; Reed-Solomon code; binary input additive white Gaussian noise channel; bitwise test pattern generation; decoding complexity; q-ary block code; symbol reliability; symbol-wise Chase decoding; symbol-wise test pattern generation; Chase decoding; soft-decision decoding; test pattern generation;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2011.122010.100864
