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has been cited by the following article:

• TITLE: A Novel Scheme with Adaptive Sampling for Better Spectrum Utilization in Cognitive Radios

  AUTHORS: Qun PAN, Xin ZHANG, Ruiming ZHENG, Yongyu CHANG, Dacheng YANG

  KEYWORDS: cognitive radio, cooperative sensing, average detection time, channel utilization ratio

  JOURNAL NAME: Communications and Network, Vol.1 No.1, August 18, 2009

  ABSTRACT: In cognitive radio (CR) networks, cognitive users need continuously monitor spectrum to decrease or avoid interference to primary users, yet attain a reasonable throughput. In this paper, we exploit a scheme to dynamically change the detection time duration to gain maximum throughput. Meanwhile the average de-tection time is kept as small as possible. The advantages of our approaches are approved by the deductions. Also the simulation results enable us to recognize the improved performance of our scheme over those ones with fixed detection time assignment.