On the Approximate Analysis of Energy Detection Over n*Rayleigh Fading Channels Through Cooperative Spectrum Sensing

被引：23

作者：

Alghorani, Yahia ^{[1
]}

Kaddoum, Georges ^{[2
]}

Muhaidat, Sami ^{[3
,4
]}

Pierre, Samuel ^{[1
]}

机构：

[1] Ecole Polytech, Dept Comp Engn, Mobile Comp & Network Res Lab LARIM, Montreal, PQ H3C 3A7, Canada

[2] Ecole Technol Super, Dept Elect Engn, Montreal, PQ H3C 1K3, Canada

[3] Khalifa Univ, Dept Elect & Comp Engn, Abu Dhabi, U Arab Emirates

[4] Univ Western Ontario, Dept Elect & Comp Engn, London, ON N6A 5B9, Canada

来源：

IEEE WIRELESS COMMUNICATIONS LETTERS | 2015年 / 4卷 / 04期

关键词：

Cognitive radio; energy detection; n*Rayleigh fading channels; diversity schemes; cooperative spectrum sensing; DIVERSITY; PRODUCT; SIGNALS;

D O I：

10.1109/LWC.2015.2427283

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this letter, we consider the problem of energy detection of unknown signals in an intervehicular communication (IVC) system over n*Rayleigh fading channels (also known as cascaded Rayleigh). Novel tight approximations for the probability of detection are derived for the no-diversity and the maximum ratio combining (MRC)) diversity schemes. Moreover, we investigate the system performance when cooperative spectrum sensing (CSS) is considered with and without imperfect reporting channels. The analytical results show that the detection reliability is decreased as the fading severity parameter n increases but reliability is substantially improved when CSS employs MRC schemes.

引用

页码：413 / 416

页数：4

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