Title :
Performance evaluation of Viterbi decoded binary and non-binary linear block codes in flat fading channels
Author :
Staphorst, L. ; Linde, Lp
Author_Institution :
Dept. of Electron. & Comput. Eng., Pretoria Univ., South Africa
Abstract :
In recent years, much attention has been given to the decoding of linear block codes by means of trellis decoding algorithms, such as the Bahl-Cocke-Jelinek-Raviv (BCJR) and Viterbi algorithms. Not only do these algorithms support soft in. put decoding, but also the application of channel state information for improved decoding performances in fading channel environments. This paper presents a performance evaluation, based on an extensive simulation study, of Viterbi decoded binary Hamming and non-binary Reed-Solomon block codes under flat fading channel conditions with varying Doppler frequencies and line-of-sight signal strengths. Special attention is given to the influence of channel state information on the bit error rate performance.
Keywords :
Hamming codes; Reed-Solomon codes; Viterbi decoding; block codes; channel coding; error statistics; fading channels; linear codes; maximum likelihood decoding; trellis codes; BCJR algorithm; BER; Bahl-Cocke-Jelinek-Raviv algorithm; Doppler frequencies; Hamming codes; Reed-Solomon codes; Viterbi decoding; binary codes; bit error rate; channel state information; flat fading channels; line-of-sight signal strengths; linear block codes; maximum-likelihood decoding; nonbinary codes; performance evaluation; soft input decoding; trellis decoding; Africa; Bit error rate; Block codes; Channel state information; Computer vision; Fading; Maximum likelihood decoding; Parity check codes; Reed-Solomon codes; Viterbi algorithm;
Conference_Titel :
Africon Conference in Africa, 2002. IEEE AFRICON. 6th
Print_ISBN :
0-7803-7570-X
DOI :
10.1109/AFRCON.2002.1146830