A group oriented soft iterative multiuser detection for coded multi-carrier CDMA systems

Author

Li, Junqiang ; Letaief, K.B. ; Cao, Zhigang

Author_Institution

Dept. of Electron. Eng., Tsinghua Univ., Beijing, China

Volume

1

fYear

2002

fDate

2002

Firstpage

293

Lastpage

297

Abstract

The system capacity and performance of MC-CDMA communication systems can be significantly enhanced by jointly employing MAP-based multiuser detection (MUD) and channel decoding techniques. In this paper, a group oriented soft iterative MUD based on the combination of smart antennas and iterative MAP-based MUD is presented. The proposed method is featured as a novel technique for further increasing the system capacity and performance. It is demonstrated that the performance of the proposed algorithm with low complexity can approach that of a signal user coded MC-CDMA system with an antenna array in AWGN and frequency selective fading channels

Keywords

AWGN channels; adaptive antenna arrays; channel capacity; code division multiple access; computational complexity; decoding; fading channels; multiuser channels; signal detection; AWGN channels; MAP-based multiuser detection; MC-CDMA communication systems; antenna array; channel decoding; coded multi-carrier CDMA systems; frequency selective fading channels; group oriented soft iterative MUD; group oriented soft iterative multiuser detection; iterative MAP-based MUD; low complexity algorithm; signal user coded MC-CDMA system; smart antennas; system capacity; system performance; AWGN; Antenna arrays; Fading; Frequency; Information technology; Interference cancellation; Iterative algorithms; Multiaccess communication; Multicarrier code division multiple access; Multiuser detection;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 2002. ICC 2002. IEEE International Conference on

Conference_Location

New York, NY

Print_ISBN

0-7803-7400-2

Type

conf

DOI

10.1109/ICC.2002.996863

Filename

996863