Location based spectrum sensing performance analysis over fading channels in cognitive radio networks

doi:10.1016/S1005-8885(09)60503-3

中国邮电高校学报(英文) ›› 2010, Vol. 17 ›› Issue (5): 26-31.doi: 10.1016/S1005-8885(09)60503-3

Location based spectrum sensing performance analysis over fading channels in cognitive radio networks

姚海鹏¹,张陆勇¹,周正²

1. 北京邮电大学无线网络实验室
2. 北京邮电大学电信工程学院

收稿日期:2009-10-30 修回日期:2010-05-07 出版日期:2010-10-30 发布日期:2010-10-31
通讯作者: 姚海鹏 E-mail:yaohaipengbupt@gmail.com
基金资助:
国家级.国家自然科学基金

Location based spectrum sensing performance analysis over fading channels in cognitive radio networks

School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China

Received:2009-10-30 Revised:2010-05-07 Online:2010-10-30 Published:2010-10-31

摘要/Abstract

摘要：

This paper analyzes the spectrum sensing performance over fading channel, in which a licensee and multiple unlicensed users coexist and operate in the licensed channel in a local area. The overall average probabilities of detection and false alarm by jointly taking the fading and the locations of all secondary users into account are derived, and a statistical model of cumulate interference is constructed. Based on the cumulate interference, a closed-form expression of outage probability at the primary user’s receiver according to a specific distribution of the fading is obtained. Finally, the sensing parameters so as to minimize the total spectrum sensing error and maximize the average opportunistic throughput are obtained. It is noted that the overall average performance analysis and results here enable to benchmark the design of specific spectrum sensing algorithms.

关键词:

spectrum sensing, cognitive radio, cumulate interference, outage probability

Abstract:

Key words:

spectrum sensing, cognitive radio, cumulate interference, outage probability

参考文献

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Location based spectrum sensing performance analysis over fading channels in cognitive radio networks

Location based spectrum sensing performance analysis over fading channels in cognitive radio networks

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