Bounds for multihop relayed communications in Nakagami-m fading

被引：299

作者：

Karagiannidis, GK ^{[1
]}

Tsiftsis, TA

Mallik, RK

机构：

[1] Aristotle Univ Thessaloniki, Dept Elect & Comp Engn, GR-54124 Thessaloniki, Greece

[2] Univ Patras, Dept Elect & Comp Engn, GR-26500 Thessaloniki, Greece

[3] Indian Inst Technol, Dept Elect Engn, New Delhi 110016, India

来源：

IEEE TRANSACTIONS ON COMMUNICATIONS | 2006年 / 54卷 / 01期

关键词：

average bit-error probability (ABEP); gamma random variables (RVs); multihop relayed communications; Nakagami-m fading; outage probability;

D O I：

10.1109/TCOMM.2005.861679

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：

We present closed-form lower bounds for the performance of multihop transmissions with nonregenerative relays over not necessarily identically distributed Nakagami-m fading channels. The end-to-end signal-to-noise ratio is formulated and upper bounded by using an inequality between harmonic and geometric means of positive random variables (RVs). Novel closed-form expressions are derived for the moment generating function, the probability density function, and the cumulative distribution function of the product of rational powers of statistically independent Gamma RVs. These statistical results are then applied to studying the outage probability and the average bit-error probability for phase- and frequency-modulated signaling. Numerical examples compare analytical and simulation results, verifying the tightness of the proposed bounds.

引用

页码：18 / 22

页数：5

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