Comparison of multiuser detectors for synchronous flat Rayleigh fading CDMA channels

Author

Wu, Hsin Yu ; Duel-Hallen, Alexandra

Author_Institution

Dept. of Electr. & Comput. Eng., North Carolina State Univ., Raleigh, NC, USA

fYear

1994

fDate

27 Jun-1 Jul 1994

Firstpage

230

Abstract

Studies the performance of several multiuser detection schemes for synchronous CDMA frequency non-selective Rayleigh fading channels. In the first part of the paper, the asymptotic multiuser efficiency (AME) of the ideal decision-feedback detector is shown to be unity for any number of users. In the second part, the effect of channel estimation errors on the performance of multiuser detectors is investigated. The average BERs of the two-stage detector and the decorrelator in the presence of channel mismatch are evaluated through analysis and simulations

Keywords

Rayleigh channels; code division multiple access; correlation methods; error statistics; fading; receivers; signal detection; synchronisation; BER; asymptotic multiuser efficiency; bit error rate; channel estimation errors; channel mismatch; decision-feedback detector; decorrelator; frequency nonselective Rayleigh fading channels; multiuser detectors; performance; synchronous flat Rayleigh fading CDMA channels; two-stage detector; AWGN; Bit error rate; Channel estimation; Code division multiplexing; Decorrelation; Detectors; Fading; Multiaccess communication; Multiuser detection; Rayleigh channels;

fLanguage

English

Publisher

ieee

Conference_Titel

Information Theory, 1994. Proceedings., 1994 IEEE International Symposium on

Conference_Location

Trondheim

Print_ISBN

0-7803-2015-8

Type

conf

DOI

10.1109/ISIT.1994.394738

Filename

394738