Study on the MAP-based decoding algorithm of turbo codes over the asymmetric channel

Author

Liu, Xingcheng ; Zhou, Jingying

Author_Institution

Dept. of Electron. & Commun. Eng., Sun Yat-sen Univ., Guangzhou, China

fYear

2009

fDate

26-28 Aug. 2009

Firstpage

1

Lastpage

5

Abstract

The asymmetric Z-channel is a discrete memoryless channel with one of the input symbols transmitted with noise. In this paper, based on the maximum a posterior probability (MAP) decoding algorithm, a novel decoding algorithm for the asymmetric Z-channel is proposed and the performance of turbo codes with the proposed algorithm is simulated. The simulation results show that the proposed turbo decoding algorithm can achieve excellent bit error rate performance over the asymmetric Z-channel.

Keywords

maximum likelihood decoding; turbo codes; MAP-based decoding; asymmetric Z-channel; asymmetric channel; discrete memoryless channel; maximum a posterior probability decoding; turbo codes; AWGN; Bit error rate; Convolutional codes; Iterative decoding; Multiplexing; Sun; Switches; Technology planning; Turbo codes; Very large scale integration; Bit Error Rate (BER); Decoding Algorithm; MAP Algorithm; Turbo Codes; Z-Channel;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications and Networking in China, 2009. ChinaCOM 2009. Fourth International Conference on

Conference_Location

Xian

Print_ISBN

978-1-4244-4337-6

Electronic_ISBN

978-1-4244-4337-6

Type

conf

DOI

10.1109/CHINACOM.2009.5339714

Filename

5339714