Asymptotic Performance Analysis of Multihop Relayed Transmissions over Nakagami-m Fading Channels

被引：21

作者：

Fang, Zhaoxi ^{[1
]}

Li, Liangbin ^{[1
]}

Wang, Zongxin ^{[1
]}

机构：

[1] Fudan Univ, Dept Commun Sci & Engn, Shanghai 200433, Peoples R China

来源：

IEICE TRANSACTIONS ON COMMUNICATIONS | 2008年 / E91B卷 / 12期

关键词：

multihop communications; average BER; Nakagami-m fading channels; amplify-and-forward;

D O I：

10.1093/ietcom/e91-b.12.4081

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 [电气工程]; 0809 [电子科学与技术];

摘要：

This letter studies the asymptotic bit error rate (BER) performance of multihop communication systems with amplify-and-forward relaying over Nakagami-m fading channels, Since it is difficult to find the exact probability density function (PDF) of the output signal-to-noise ratio (SNR) at the destination, we resort to the series expansion of this PDF in the neighborhood of zero. Building upon this result, a closed-form expression for the average BER in the high SNR region is derived. Numeric results show that the derived asymptotic BER expression is accurate at medium and high SNR for both independent identically distributed (i.i.d.) and independent non-identically distributed (i.n.i.d.) channels.

引用

页码：4081 / 4084

页数：4

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