Comparison of multilevel coded modulation with different decoding methods over AWGN channels

Author

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

Author_Institution

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

Volume

1

fYear

2000

fDate

2000

Firstpage

567

Abstract

According to the “capacity rule”, the performance of multilevel coding (MLC) schemes with 8ASK modulation and three set partitioning strategies over AWGN channels is investigated. Two different decoding methods, which are multistage decoding (MSD) and parallel decoding on level (PDL), are used. In each scheme BCH codes with code lengths of 127 are used as component codes. Numerical results indicate that MSD is a sub-optimal decoding method of MLC for AWGN channels. For Ungerboeck partitioning (UP) and mixed partitioning (MP), the MSD method is strongly recommended to use for the MLC system, while for block partitioning (BP), PDL is suggested to use as a simple decoding method compared with MSD

Keywords

AWGN channels; BCH codes; amplitude shift keying; channel coding; decoding; modulation coding; 8ASK modulation; AWGN channels; BCH codes; MLC schemes; Ungerboeck partitioning; block partitioning; capacity rule; code length; decoding methods; mixed partitioning; multilevel coded modulation; multistage decoding; parallel decoding on level; performance; set partitioning strategies; sub-optimal decoding method; AWGN channels; Channel capacity; Constellation diagram; Decoding; Delay effects; Modulation coding; Mutual information; Page description languages; Robustness; Signal mapping;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 2000. PIMRC 2000. The 11th IEEE International Symposium on

Conference_Location

London

Print_ISBN

0-7803-6463-5

Type

conf

DOI

10.1109/PIMRC.2000.881487

Filename

881487