Asymptotic BEP and SEP of Differential EGC in Correlated Ricean Fading and Non-Gaussian Noise

TitleAsymptotic BEP and SEP of Differential EGC in Correlated Ricean Fading and Non-Gaussian Noise
Publication TypeConference Paper
Year of Publication2007
AuthorsNezampour, A., A. Nasri, R. Schober, and Y. Ma
Conference NameGlobal Telecommunications Conference, 2007. GLOBECOM '07. IEEE
Pagination1540 -1545
Date Publishednov.
Keywordsasymptotic BEP, asymptotic SEP, bit-error probability, closed-form expression, correlated Ricean fading, DEGC, differential equal gain combining, differential M-ary phase-shift keying, differential phase shift keying, diversity reception, error statistics, multiple diversity, nonGaussian noise, Rician channels, symbol-error probability
Abstract

In this paper, we study the asymptotic behavior of the bit-error probability (BEP) and symbol-error probability (SEP) of differential M-ary phase-shift keying with differential equal gain combining (DEGC) in correlated Ricean fading and non-Gaussian noise, which in our definition also includes interference. We derive simple and easy-to-evaluate asymptotic BEP and SEP expressions which show that at high signal- to-noise ratios (SNRs) the performance of DEGC depends on certain moments of the noise and interference impairing the transmission. We provide closed-form expressions for these moments for practically important types of noise such as Gaussian noise, Gaussian mixture noise, and correlated co-channel interference. In addition, we show that the performance loss of DEGC compared to coherent maximum ratio combining (MRC) is always 3 dB independent of the type of noise if only one diversity branch is available but strongly depends on the type of noise if multiple diversity branches are combined.

URLhttp://dx.doi.org/10.1109/GLOCOM.2007.296
DOI10.1109/GLOCOM.2007.296

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