Hybrid uplink multi-carrier CDMA interference cancellation receiver

Author

McCormick, A.C. ; Grant, P.M. ; Thompson, J.S.

Author_Institution

Dept. of Electron. & Electr. Eng., Edinburgh Univ., UK

Volume

148

Issue

2

fYear

2001

fDate

4/1/2001 12:00:00 AM

Firstpage

119

Lastpage

124

Abstract

A novel interference cancellation detector, which combines an initial phase of cancelling one or more users per iteration depending on the tentative decision metrics, followed by maximum likelihood detection for the last few users, is proposed for multi-carrier CDMA uplink communication. Simulation results compare the system with a number of other multi-user detection receivers for an uplink multipath multi-user problem. The number of iterations and computation complexity are compared with a successive interference cancellation approach. The influence of the near-far effect and of poor channel estimation is also investigated

Keywords

Rayleigh channels; code division multiple access; computational complexity; interference suppression; iterative methods; maximum likelihood detection; mobile radio; multipath channels; multiuser channels; radio receivers; computation complexity; hybrid receiver; interference cancellation receiver; iterations; maximum likelihood detection; multi-carrier CDMA uplink communication; multi-user detection receivers; near-far effect; poor channel estimation; simulation results; successive interference cancellation; tentative decision metrics; uplink multipath multi-user problem;

fLanguage

English

Journal_Title

Communications, IEE Proceedings-

Publisher

iet

ISSN

1350-2425

Type

jour

DOI

10.1049/ip-com:20010272

Filename

927594