Cooperative Spectrum Sensing in Cognitive Radio Systems

Authors:
Xueqiang Zheng;Li Cui;Juan Chen;Qihui Wu;Jinlong Wang
Affiliations:
-;-;-;-;-
Venue:
CISP '08 Proceedings of the 2008 Congress on Image and Signal Processing, Vol. 5 - Volume 05
Year:
2008

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Abstract

We considered the problem of use the reliability of unlicensed users for cooperative spectrum sensing in cognitive radio systems by analyzing the Huffman encoding algorithm. We present a novel cooperative spectrum sensing algorithm in cognitive radio systems. We drive the close-form expressions for the average sending bits for each unlicensed user for cooperation and expression for the probability of the detection and the false-alarm for the novel cooperative spectrum sensing scheme. Finally, we show through numerical results the potential cooperative spectrum sensing performance improvement with using the reliability of unlicensed users.