Title :
Reduced Complexity Combined Soft-Decision MLSE Equalization and Decoding
Author :
Myburgh, H.C. ; Linde, L.P.
Author_Institution :
Dept. of Electr., Univ. of Pretoria, Tshwane
Abstract :
A maximum likelihood sequence estimation (MLSE) combined equalizer and decoder with soft-decision decoding performance, that has a computational complexity superior to that of conventional MLSE equalization, is proposed. Its performance is compared to a system containing a soft-output Viterbi MLSE equalizer followed by a soft-decision Viterbi MLSE decoder. It is shown via computer simulation that the proposed algorithm´s performance matches that of conventional soft-decision decoding, while eliminating the use of a decoder in the receiver, for frequency-selective Rayleigh fading channels.
Keywords :
Rayleigh channels; channel coding; equalisers; maximum likelihood decoding; maximum likelihood sequence estimation; MLSE equalization; computational complexity; equalizer; frequency-selective Rayleigh fading channel; maximum likelihood sequence estimation; soft-decision decoding; Africa; Binary phase shift keying; Bit error rate; Computational complexity; Decision feedback equalizers; Frequency estimation; Intersymbol interference; Maximum likelihood decoding; Maximum likelihood estimation; Viterbi algorithm;
Conference_Titel :
Telecommunication Networks and Applications Conference, 2008. ATNAC 2008. Australasian
Conference_Location :
Adelaide, SA
Print_ISBN :
978-1-4244-2602-7
Electronic_ISBN :
978-1-4244-2603-4
DOI :
10.1109/ATNAC.2008.4783324
