Modified turbo code decoding algorithm in CDMA communications under fading channel

Author

Wang, Kaihua ; Xu, Jilin ; Tang, JianChun ; Zhang, Ze ; Zhang, Chuanqing

Author_Institution

Sch. of Electron. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China

Volume

1

fYear

2005

Firstpage

128

Abstract

In order to have reliable communications, channel coding is often employed. Turbo coding as a powerful coding technique, has been widely studied and used in communication systems. A turbo code decoder algorithm is studied in detail in this paper. The performance of turbo code used in IS-2000 code division multiple access (CDMA) reverse or forward link under additive white Gaussian noise (AWGN) and slow fading channels is evaluated. The bit error rates (BER) of turbo code at low signal-to-noise ratio (SNR) are obtained by simulations.

Keywords

AWGN channels; channel coding; code division multiple access; decoding; error statistics; fading channels; mobile radio; turbo codes; AWGN; BER; CDMA communications; IS-2000; SNR; additive white Gaussian noise; bit error rates; channel coding; code division multiple access; decoder; forward link; performance; reliable communications; reverse link; signal-to-noise ratio; slow fading channels; turbo code decoding; turbo coding; AWGN; Additive white noise; Bit error rate; Channel coding; Decoding; Fading; Multiaccess communication; Power system reliability; Signal to noise ratio; Turbo codes;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, Circuits and Systems, 2005. Proceedings. 2005 International Conference on

Print_ISBN

0-7803-9015-6

Type

conf

DOI

10.1109/ICCCAS.2005.1493377

Filename

1493377