Suboptimal multiuser detector for frequency-selective Rayleigh fading synchronous CDMA channels

Author

Zvonar, Z. ; Brady, D.

Author_Institution

Dept. of Electr. & Comput. Eng., Northeastern Univ., Boston, MA, USA

Volume

43

Issue

38020

fYear

1995

Firstpage

154

Lastpage

157

Abstract

Proposes a suboptimal low-complexity multiuser receiver for synchronous CDMA frequency-selective Rayleigh fading channels. In contrast to the conventional RAKE receiver, which suffers from near-far effects due to channel fading, the proposed multiuser receiver is shown to alleviate the near-far problem while preserving multipath diversity gain. This is demonstrated by comparing the symbol error probability and asymptotic multiuser efficiency of the proposed multiuser detector and RAKE receiver.<>

Keywords

Rayleigh channels; code division multiple access; communication complexity; diversity reception; error statistics; fading; receivers; signal detection; synchronisation; time-varying channels; RAKE receiver; asymptotic multiuser efficiency; channel fading; frequency-selective Rayleigh fading synchronous CDMA channels; multipath diversity gain; near-far effects; suboptimal low-complexity multiuser receiver; suboptimal multiuser detector; symbol error probability; Code division multiplexing; Detectors; Diversity methods; Error probability; Fading; Frequency; Multipath channels; RAKE receivers; Rayleigh channels;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/26.380025

Filename

380025