Cooperative spectrum sensing using opportunistic amplify-and-forward relaying over Nakagami-m fading channels

被引：1

作者：

Ren, Defeng ^{[1
]}

Ge, Jianhua ^{[1
]}

Li, Jing ^{[1
]}

Ji, Yancheng ^{[2
]}

机构：

[1] Xidian Univ, State Key Lab Integrated Serv Networks, Xian 710071, Peoples R China

[2] Nantong Univ, Sch Elect & Informat, Nantong 226001, Peoples R China

来源：

IET COMMUNICATIONS | 2013年 / 7卷 / 13期

基金：

中国国家自然科学基金;

关键词：

cognitive radio; Nakagami channels; probability; radio spectrum management; signal detection; amplify and forward communication; cooperative communication; relay networks (telecommunication); cooperative spectrum sensing scheme; opportunistic amplify-and-forward relaying; CSS-OAFR scheme; Nakagami-m fading channels; detection performance; cognitive relay; distributed cognitive radio networks; energy detector; average missed-detection probability; radio access technologies; COGNITIVE RADIO; PERFORMANCE ANALYSIS; POWER ALLOCATION; DIVERSITY;

D O I：

10.1049/iet-com.2012.0710

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：

In this study, the authors present a cooperative spectrum sensing scheme based on opportunistic amplify-and-forward relaying (denoted by CSS-OAFR), which provides higher detection performance by selecting the best cognitive relay and is interesting in distributed cognitive radio networks. Moreover, the authors focus on the detection performance using the energy detector over independent and non-identically distributed Nakagami-m fading channels. In particular, a tight closed-form lower bound of the average missed-detection probability is derived for the convenience of performance evaluation in practice. Finally, simulations are provided to validate the CSS-OAFR scheme and the derived closed-form lower bound.

引用

页码：1377 / 1382

页数：6

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