Title :
Robust multilevel coding design using soft decision decoding
Author :
Yuan, Dong-Feng ; Sui, Ai-Fen ; Cao, Zhi-Gang
Author_Institution :
Dept. of Electr. Eng., Shandong Univ., Jinan, China
Abstract :
Based on a capacity rule and block partitioning strategy, a robust multilevel coding (MLC) scheme is proposed for AWGN and Rayleigh fading channels. Punctured convolutional codes using soft or hard decision Viterbi decoding are selected as component codes. The considerable performance gains over the uncoded 4ASK system are demonstrated by computer simulation and the results can present some references for the optimum criterion of multilevel coding design
Keywords :
AWGN channels; Rayleigh channels; Viterbi decoding; convolutional codes; optimisation; AWGN channels; Rayleigh fading channels; Viterbi decoding; block partitioning; capacity rule; hard decision decoding; optimization; performance; punctured convolutional codes; robust multilevel coding; soft decision decoding; AWGN; Convolutional codes; Decoding; Euclidean distance; Fading; Modulation coding; Protection; Rayleigh channels; Robustness; Viterbi algorithm;
Conference_Titel :
Communication Technology Proceedings, 2000. WCC - ICCT 2000. International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-6394-9
DOI :
10.1109/ICCT.2000.889221
