A sequential test based cooperative spectrum sensing scheme for cognitive radios

Yeelin Shei*, Yu-Ted Su

*Corresponding author for this work

研究成果: Conference contribution同行評審

32 引文 斯高帕斯(Scopus)

摘要

Fast and accurate spectrum sensing is crucial in realizing a reliable cognitive network. Cooperative spectrum sensing can help reducing the mean detection time and increasing the agility of the sensing process. However, when the number of cognitive users is large, the bandwidth need for the control channel that are used to report the secondary user nodes' results to the fusion center may become excessively large. In this paper, we apply the sequential probability ratio test (SPRT) to control the average number of the reporting bits. It is shown that the proposed technique not only reduces the mean detection time and bandwidth but also outperforms its non-sequential counterpart. We derive the relationships amongst the global performance, miss probability and false alarm probability and show how to control the average number of reports by thresholding the distributed cognitive users.

原文American English
主出版物標題2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2008
發行者IEEE
ISBN(列印)9781424426447
DOIs
出版狀態Published - 1 十二月 2008
事件2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2008 - Poznan, Poland
持續時間: 15 九月 200818 九月 2008

出版系列

名字IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC

Conference

Conference2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2008
國家Poland
城市Poznan
期間15/09/0818/09/08

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