In cognitive radio (CR) networks, unlicensed secondary users need to conduct spectrum sensing to gain access to a licensed spectrum band. And cooperation among CR users will solve the problems caused by multipath fading and shadowing. In this paper, we propose a multi-threshold method at local nodes to cope with noises of great uncertainty. Functions of distance between bodies of evidence are used at fusion centre to make synthetic judgment. To guarantee security which is an essential component for basic network functions, we will take selfish nodes into account which try to occupy channels exclusively. The proposed technique has shown better performance than conventional algorithms without increase the system overhead.
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机译:基因组医学:Alain Li-Wan-Po的101个主题演讲和概念。 124 pp。ISBN平装本,价格£ 24.50:978-0-9929834-0-6;出版商:Center for Evidence-Based Practice Ltd,英国诺丁汉,2014年。 ISBN Kindle版本:978‐0‐9929834‐1‐3; ISBN ePub版本:978-0‐9929834‐2-0