Detection efficiency of cooperative spectrum sensing in cognitive radio network

被引：11

作者：

CHEN, Xing ^{[1
]}

BIE, Zhi-song ^{[1
]}

WU, Wei-ling ^{[1
]}

机构：

[1] Key Laboratory of Information Processing and Intelligent Technology, Beijing University of Posts and Telecommunications, Beijing

来源：

Journal of China Universities of Posts and Telecommunications | 2008年 / 15卷 / 03期

基金：

中国国家自然科学基金;

关键词：

cognitive radio; cooperative sensing; cyclostationarity; spectrum sensing;

D O I：

10.1016/S1005-8885(08)60098-9

中图分类号：

学科分类号：

摘要：

Sensing the spectrum in a reliable and efficient manner is crucial to cognitive radio. To combat the channel fading suffered by the single radio, cooperative spectrum sensing is employed, to associate the detection of multiple radios. In this article, the optimization problem of detection efficiency under the constraint of detection probability is investigated, and an algorithm to evaluate the required radio number and sensing time for maximal detection efficiency is presented. To show the effect of cooperation on the detection efficiency, the proposed algorithm is applied to cooperative sensing using the spectral correlation detector under the Rayleigh flat fading channel. © 2008 The Journal of China Universities of Posts and Telecommunications.

引用

页码：1 / 7

页数：6

共 4 条

[1]

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[2]

Gardner W., Signal interception: a unifying theoretical framework for feature detection, IEEE Transactions on Communications, 36, 8, pp. 897-906, (1988)

[3]

Gardner W., Statistical spectral analysis: a nonprobabilistic theory, pp. 463-467, (1987)

[4]

Gardner W., Loomis H., Digital implementations of spectral correlation analyzers, IEEE Transactions on Signal Processing, 41, 2, pp. 703-720, (1993)

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