Design of partially adaptive STBC CDMA receiver using conjugate gradient algorithm

Author

Lin, Gau-Joe ; Lin, Tsui-Tsai ; Lee, Ta-Sung

Author_Institution

Dept. of Commun. Eng., National Chiao Tung Univ., Hsinchu

Volume

1

fYear

2004

fDate

6-9 Dec. 2004

Firstpage

393

Abstract

A novel partially adaptive (PA) receiver with MAI suppression is proposed for an STBC CDMA system under the multipath fading channels. A low-complexity PA realization of the receiver is developed based on the generalized sidelobe canceller (GSC) technique which partial adaptivity is incorporated via the conjugate gradient (CG) algorithm for reduced complexity implementation. The proposed PA receiver is evaluated through simulations, and the results show that it can achieve nearly the same performance of the conventional fully adaptive MMSE receiver by using a small number of pilot symbols

Keywords

adaptive modulation; block codes; code division multiple access; conjugate gradient methods; radio receivers; space-time codes; MAI suppression; STBC CDMA; adaptive MMSE receiver; conjugate gradient algorithm; generalized sidelobe canceller; multipath fading channels; partially adaptive receiver; Algorithm design and analysis; Antenna arrays; Block codes; Character generation; Fading; Filters; Multiaccess communication; Multiuser detection; Receiving antennas; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2004. Proceedings. The 2004 IEEE Asia-Pacific Conference on

Conference_Location

Tainan

Print_ISBN

0-7803-8660-4

Type

conf

DOI

10.1109/APCCAS.2004.1412778

Filename

1412778