Title :
Optimum criterion for multilevel coding systems in AWGN channels
Author :
Yuan, Dong-Feng ; Wang, Cheng-Xiang ; Yao, Qi ; Cao, Zhi-Gang
Author_Institution :
Dept. of Electr. Eng., Shandong Univ., Jinan, China
Abstract :
Based on [1,2,3], a novel criterion, the “capacity rule” and “mapping strategy”, for the design of optimal MLC schemes over AWGN channels is proposed. According to this theory, the performance of multilevel coding with multistage decoding schemes (MLC/MSD) in AWGN channels is investigated, in which BCH codes are chosen as component codes, and three mapping strategies with 8ASK modulation are used. Numerical results indicate that when code rates of component codes in the MLC scheme are designed based on “capacity rule”, the performance of the system with UP is optimum for AWGN fading channels
Keywords :
AWGN channels; BCH codes; amplitude shift keying; decoding; fading channels; modulation coding; optimisation; 8ASK modulation; AWGN channels; BCH codes; capacity rule; fading channels; mapping strategy; multilevel coding systems; multistage decoding; optimum criterion; AWGN channels; Channel capacity; Constellation diagram; Decoding; Degradation; Fading; Hamming distance; Modulation coding; Mutual information; Signal mapping;
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.2000.890987
