Cooperative detection algorithm of spectrum holes in cognitive radio
Shi Lei, Ye Zhun, Zhang Zhong Zhao
Communication Research Center, Harbin Institute of Technology, Harbin 150080, China
Abstract:
To improve the detection performance of sensing users for primary users in the cognitive radio, an optimal cooperative detection algorithm for many sensing users is proposed. In this paper, optimal decision thresholds of each sensing user are discussed. Theoretical analysis and simulation results indicate that the detection probability of optimal decision threshold rules is better than that of determined threshold rules when the false alarm of the fusion center is constant. The proposed optimal cooperative detection algorithm improves the detection performance of primary users as the attendees grow. The 2 dB gain of detection probability can be obtained when a new sensing user joins in, and there is a 17 dB improvement when the accumulation number increases from 1 to 50.
Key words: cognitive radio spectrum detection optimal cooperative algorithm
DOI：10.11916/j.issn.1005-9113.2009.01.006
Clc Number:TN92
Fund:
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Cooperative detection algorithm of spectrum holes in cognitive radio
本站小编 哈尔滨工业大学/2019-10-23
相关话题/Cooperative detection algorithm spectrum holes
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