Analysis of equal gain diversity on Nakagami fading channels

Author

Beaulieu, Norman C. ; Abu-Dayya, Adnan A.

Author_Institution

Dept. of Electr. Eng., Queen´´s Univ., Kingston, Ont., Canada

Volume

39

Issue

2

fYear

1991

fDate

2/1/1991 12:00:00 AM

Firstpage

225

Lastpage

234

Abstract

An infinite series for the complementary probability distribution function (CDF) of the signal-to-noise ratio (SNR) at the output of L -branch equal-gain (EG) diversity combiners in Nakagami (1960) fading channels is derived. The bit error rate for a matched filter receiver is analyzed for the L-branch EG combiner and different fading parameters. Both coherent phase shift keying (CPSK) and differential coherent phase shift keying (DCPSK) are considered. The effects of gain unbalance between branches on the probability distribution of the SNR and on the bit error rates are investigated. Bit error rate results are also obtained for coherent and noncoherent reception of frequency shift keying (FSK). The effects of gain unbalances on FSK modulations are also investigated. Bit error rates for EG combining on Rayleigh fading channels are obtained for L>2. These results are presented as a special case of the more generalized Nakagami fading model

Keywords

diversity reception; fading; frequency shift keying; phase shift keying; probability; telecommunication channels; CPSK; DCPSK; FSK; Nakagami fading channels; Nakagami fading model; Rayleigh fading channels; SNR; bit error rate; coherent phase shift keying; coherent reception; complementary probability distribution function; differential coherent phase shift keying; diversity combiners; equal gain combining; equal gain diversity; fading parameters; frequency shift keying; gain unbalance; infinite series; matched filter receiver; noncoherent reception; signal-to-noise ratio; Bit error rate; Diversity reception; Fading; Frequency shift keying; Matched filters; Nakagami distribution; Phase shift keying; Probability distribution; Rayleigh channels; Signal to noise ratio;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/26.76460

Filename

76460