An MGF-based performance analysis of generalized selection combining over Rayleigh fading channels

被引：338

作者：

Alouini, MS ^{[1
]}

Simon, MK

机构：

[1] Univ Minnesota, Dept Elect & Comp Engn, Minneapolis, MN 55455 USA

[2] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA

来源：

IEEE TRANSACTIONS ON COMMUNICATIONS | 2000年 / 48卷 / 03期

基金：

美国国家科学基金会;

关键词：

generalized selection combining; hybrid SC/MRC; maximal ratio combining diversity; Rayleigh fading; selection combining;

D O I：

10.1109/26.837044

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Using the notion of the "spacing" between ordered exponential random variables, a performance analysis of the generalized selection combining (GSC) diversity scheme over Rayleigh fading channels is presented and compared with that of the conventional maximal-ratio combining and selection combining schemes. Starting with the moment generating function of the GSC output signal-to-noise ratio (SNR), we derive closed-form expressions for the average combined SNR, outage probability, and average error probability of a wide variety of modulation schemes operating over independently, identically distributed (i.i.d.) diversity paths. Because of their simple form, these expressions readily allow numerical evaluation for cases of practical interest. The results are also extended to the case of non-i.i.d. diversity paths.

引用

页码：401 / 415

页数：15

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