Cooperative spectrum sensing in cognitive radio networks

被引：0

作者：

Ganesan, G ^{[1
]}

Li, Y ^{[1
]}

机构：

[1] Georgia Inst Technol, Sch Elect & Comp Engn, Atlanta, GA 30332 USA

来源：

2005 1st IEEE International Symposium on New Frontiers in Dynamic Spectrum Access Networks, Conference Record | 2005年

关键词：

cognitive radio; cooperative diversity; agility gain; detection time;

D O I：

暂无

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 cognitive networks, cognitive (unlicensed) users need to continuously monitor spectrum to detect the presence of primary (licensed) users. In this paper, we illustrate the benefits of cooperation in cognitive radio. We show that by allowing the cognitive radios operating in the same band to cooperate we can reduce the detection time and thus increasing their agility. We first consider the case of two cognitive users and show how the inherent asymmetry in the network can be exploited to increase the probability of detection. We then extend our work to multiple cognitive user networks. We also propose a practical algorithm which allows cooperation in random networks.

引用

页码：137 / 143

页数：7

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