Exact closed-form performance analysis of optimum combining with multiple cochannel interferers and Rayleigh fading

Author

Lao, Debang ; Haimovich, Alexander M.

Author_Institution

Dept. of Electr. & Comput. Eng., New Jersey Inst. of Technol., Newark, NJ, USA

Volume

51

Issue

6

fYear

2003

fDate

6/1/2003 12:00:00 AM

Firstpage

995

Lastpage

1003

Abstract

A new closed-form expression is derived for the exact bit-error probability (BEP) for optimum combining with binary phase-shift keying. The exact BEP expression is for multiple, equal power, cochannel interferers and multiple reception branches. It is assumed that the aggregate interference and noise is Gaussian and that both the desired signal and interference are subject to Rayleigh fading. The derivation starts by expressing the optimum combining decision statistic as a sum of quadratic forms of Gaussian random variables and it proceeds to average over the fading interference. The new BEP expression has low complexity as it contains only finite sums and products.

Keywords

Gaussian noise; Rayleigh channels; cochannel interference; diversity reception; error statistics; interference suppression; phase shift keying; random processes; BPSK; Gaussian interference; Gaussian noise; Gaussian random variables; Rayleigh fading; binary phase-shift keying; closed-form expression; cochannel interference suppression; exact bit-error probability; exact closed-form performance analysis; fading interference; finite products; finite sums; low complexity BEP expression; multiple reception branches; optimum combining; optimum combining decision statistic; Binary phase shift keying; Closed-form solution; Diversity reception; Fading; Gaussian noise; Interference; Performance analysis; Phase shift keying; Rayleigh channels; Signal to noise ratio;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/TCOMM.2003.813260

Filename

1209299