Title :
Robust multilevel coding design with soft decision decoding for AWGN and Rayleigh fading channels
Author :
Yuan, Dong-Feng ; Sui, Ai-Fen ; Li, Zuo-Wei
Author_Institution :
Dept. of Electr. Eng., Shandong Univ., Jinan, China
Abstract :
Soft decision decoding for multilevel coding (MLC) schemes using punctured convolutional codes are investigated based on the capacity rule. Three mapping strategies named Ungerboeck´s (1982) set partitioning (UP), block partitioning (BP) and mixed partitioning (MP) are compared in both AWGN and Rayleigh fading channels. Then, a robust MLC scheme is proposed based on the capacity rule and BP strategy, and the considerable performance gains over an uncoded system are demonstrated by computer simulation. The results can present some references for the optimal criterion for multilevel coding design
Keywords :
AWGN channels; Rayleigh channels; channel capacity; channel coding; decoding; AWGN channels; BP; MP; Rayleigh fading channels; UP; Ungerboeck´s set partitioning; block partitioning; capacity rule; computer simulation; mapping strategies; mixed paritioning; multilevel coding; optimal criterion; performance; punctured convolutional codes; robust multilevel coding design; soft decision decoding; uncoded system; AWGN; Convolutional codes; Decoding; Euclidean distance; Fading; Modulation coding; Performance gain; Protection; Robustness; Viterbi algorithm;
Conference_Titel :
MILCOM 2000. 21st Century Military Communications Conference Proceedings
Conference_Location :
Los Angeles, CA
Print_ISBN :
0-7803-6521-6
DOI :
10.1109/MILCOM.2000.904983
