Space-time multiuser detection

Author

Wang, Xiaodong ; Poor, H. Vincent

Author_Institution

Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA

Volume

2

fYear

1998

fDate

1-4 Nov. 1998

Firstpage

1079

Abstract

The problem of multiuser detection in multipath CDMA channels with a receiver antenna array is considered. The optimal space-time multiuser receiver structure is first outlined, followed by linear space-time multiuser detection methods based on iterative interference cancellation. Blind adaptive space-time multiuser detection techniques are also developed. It is seen that the proposed multiuser space-time processing techniques offer substantial performance gains over the single-user-based methods, especially in a near-far situation.

Keywords

adaptive signal detection; code division multiple access; interference suppression; iterative methods; land mobile radio; multipath channels; multiuser channels; radio receivers; radiofrequency interference; space-time adaptive processing; spread spectrum communication; DS-CDMA mobile radio network; blind adaptive space-time multiuser detection; data transmission; iterative interference cancellation; linear space-time multiuser detection; mobile telephony; multipath CDMA channels; multiple access interference; multiuser space-time processing; near-far situation; optimal space-time multiuser receiver; performance gains; receiver antenna array; single-user-based methods; wireless communications; Additive noise; Antenna arrays; Baseband; Gaussian noise; Multiaccess communication; Multipath channels; Multiple access interference; Multiuser detection; Radio transmitters; Receiving antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Systems & Computers, 1998. Conference Record of the Thirty-Second Asilomar Conference on

Conference_Location

Pacific Grove, CA, USA

ISSN

1058-6393

Print_ISBN

0-7803-5148-7

Type

conf

DOI

10.1109/ACSSC.1998.751428

Filename

751428