Title :
Ordered statistics decoding of linear block codes on the WSSUS multipath channel
Author :
Chen, Wu-Hsiang Jonas ; Hwang, Jenq-Neng ; Roy, Surnit
Author_Institution :
Dept. of Electr. Eng., Washington Univ., Seattle, WA, USA
Abstract :
The ordered statistics decoding algorithm is applied to the wide-sense-stationary uncorrelated-scattering (WSSUS) Rayleigh fading channel, modeled as a frequency non-selective, slow-fading environment without intersymbol interference (ISI). We derive the log-likelihood ratio of received symbols based on 2-DPSK transmission. Simulations are conducted for the WSSUS channel at various interleaving degrees. At bit error rate (BER) of 10-5 and 38 dB gain compared to uncoded 2-DPSK are obtained for the decoding of the (128,64,22) extended BCH code with interleaving degree 50
Keywords :
BCH codes; Golay codes; Rayleigh channels; block codes; channel coding; differential phase shift keying; error statistics; interleaved codes; linear codes; maximum likelihood decoding; mobile radio; multipath channels; statistical analysis; 2-DPSK transmission; BER; Rayleigh fading channel; WSSUS channel; bit error rate; extended BCH code; extended Golay code; frequency non-selective slow-fading environment; interleaving degree; linear block codes; log-likelihood ratio; mobile radio channel; multipath channel; ordered statistics decoding algorithm; wide-sense-stationary uncorrelated-scattering channel; Bit error rate; Block codes; Decoding; Delay; Fading; Frequency; Interleaved codes; Intersymbol interference; Multipath channels; Statistics;
Conference_Titel :
Communications, Computers and Signal Processing, 1999 IEEE Pacific Rim Conference on
Conference_Location :
Victoria, BC
Print_ISBN :
0-7803-5582-2
DOI :
10.1109/PACRIM.1999.799563
