Title :
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
fDate :
4/1/2001 12:00:00 AM
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;
Journal_Title :
Communications, IEE Proceedings-
DOI :
10.1049/ip-com:20010272
