Title :
Investigation on the Chaotic Phase Shift Keying (CPSK) system with turbo iterative coding
Author :
Wu, Xin ; Berber, Stevan M.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Auckland, Auckland
Abstract :
This paper presents the results of BER improvements in a chaotic phase shift keying (CPSK) CDMA system when turbo iterative decoding techniques are applied. The decoding technique investigated in this system is called the list bidirectional soft output (LBSO) algorithm. In particular, the method of iterative LBSO decoding based on the normalization of extrinsic information is investigated. The results achieved that CPSK-DS-CDMA system with turbo iterative LBSO decoding has much better error performance than the original CPSK system without coding. The error performance of the improved iterative LBSO decoding outperforms the improved soft output Viterbi algorithm (SOVA) decoding method.
Keywords :
Viterbi decoding; chaotic communication; code division multiple access; error statistics; iterative decoding; phase shift keying; spread spectrum communication; turbo codes; BER improvement; CPSK-DS-CDMA system; chaotic phase shift keying; iterative LBSO decoding algorithm; list bidirectional soft output algorithm; soft output Viterbi algorithm decoding method; turbo iterative coding; turbo iterative decoding; Bit error rate; Chaos; Chaotic communication; Iterative algorithms; Iterative decoding; Iterative methods; Multiaccess communication; Phase shift keying; Turbo codes; Viterbi algorithm;
Conference_Titel :
Information Theory and Its Applications, 2008. ISITA 2008. International Symposium on
Conference_Location :
Auckland
Print_ISBN :
978-1-4244-2068-1
Electronic_ISBN :
978-1-4244-2069-8
DOI :
10.1109/ISITA.2008.4895478
