Title :
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
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;
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
DOI :
10.1109/CHINACOM.2009.5339714
