Different decoding methods for multilevel coded modulation over Rayleigh fading channels

Author

Yuan, Dong-Feng ; Yao, Qi ; Wang, Chang-Xiang ; Cao, Zhi-Gang

Author_Institution

Dept. of Electr. Eng., Shandong Univ., Jinan, China

Volume

2

fYear

2000

fDate

2000

Firstpage

1542

Abstract

Based on a “capacity rule“, the performance of multilevel coding (MLC) schemes with different decoding methods, which are multistage decoding (MSD) and parallel decoding on level (PDL), is investigated. The work is done for 8ASK modulation and three mapping strategies over Rayleigh fading channels are used. In each scheme BCH codes with different code lengths are used as component codes. Numerical results indicate that MSD is a sub-optimal decoding method of MLC, while PDL is most robust if block partitioning (BP) is used. For Ungerboeck partitioning (UP) and a mixed partitioning (MP) strategy, MSD is strongly recommended for the MLC system, while for the BP strategy, PDL is suggested as a simple decoding method compared with MSD

Keywords

BCH codes; Rayleigh channels; amplitude shift keying; channel capacity; channel coding; decoding; modulation coding; 8ASK modulation; BCH codes; Rayleigh fading channels; Ungerboeck partitioning; block partitioning; capacity rule; code lengths; mapping strategies; mixed partitioning; multilevel coded modulation; multistage decoding; parallel decoding on level; performance; Capacity planning; Channel capacity; Decoding; Delay effects; Fading; Mobile communication; Modulation coding; Mutual information; Page description languages; Robustness;

fLanguage

English

Publisher

ieee

Conference_Titel

Communication Technology Proceedings, 2000. WCC - ICCT 2000. International Conference on

Conference_Location

Beijing

Print_ISBN

0-7803-6394-9

Type

conf

DOI

10.1109/ICCT.2000.890954

Filename

890954