Title :
Application of a burst-error-correction Viterbi algorithm to Q2PSK on Rician fading channels
Author :
van Wyk, D.J. ; Linde, L.P.
Author_Institution :
Dept. of Electr. & Electron. Eng., Pretoria Univ., South Africa
Abstract :
This paper deals with the design and implementation of a random-burst-error-correcting soft-decision adaptive Viterbi decoder (AVD) for four-dimensional (4D) quadrature-quadrature phase-shift keying (Q2PSK) when operating on Rician fading channels. The characteristics of the Rician fading channels are examined and analysed in terms of the probability distributions of amplitude and burst errors. Having the background knowledge of the burst error distribution, an adaptive random-burst-error-correcting Viterbi decoding strategy is designed for incorporation into a digital Q2PSK communication system. Performance results are presented to illustrate the efficiency of the adaptive Viterbi decoder under typical Rician channel conditions
Keywords :
Rician channels; Viterbi decoding; adaptive systems; coding errors; digital radio; error correction codes; fading; probability; quadrature phase shift keying; radiowave propagation; Rician fading channels; adaptive Viterbi decoder; amplitude errors; burst error correction Viterbi algorithm; burst error distribution; burst errors; decoder efficiency; digital Q2PSK communication system; performance results; probability distributions; propagation environment; quadrature-quadrature phase-shift keying; random burst error correcting decoder; soft decision decoder; Africa; Design engineering; Error correction; Error correction codes; Interleaved codes; Maximum likelihood decoding; Phase shift keying; Probability distribution; Rician channels; Viterbi algorithm;
Conference_Titel :
AFRICON, 1996., IEEE AFRICON 4th
Conference_Location :
Stellenbosch
Print_ISBN :
0-7803-3019-6
DOI :
10.1109/AFRCON.1996.562952
