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Volume 39 Issue 11
Nov.  2017
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Article Contents
Jiaao YU, Shirui PENG, Xiaokun CHEN, Youquan LI. Equivalent Circuit Method for Hexagonal Loop Composite Absorbing Material[J]. Journal of Electronics & Information Technology, 2018, 40(8): 1873-1878. doi: 10.11999/JEIT171103
Citation: JIANG Xianyang, XIA Kaili, TANG Xianghong. Stochastic Approach Optimization Algorithm for Cognitive Radio Spectrum Sensing Estimation Delay Time[J]. Journal of Electronics & Information Technology, 2017, 39(11): 2548-2555. doi: 10.11999/JEIT170122

Stochastic Approach Optimization Algorithm for Cognitive Radio Spectrum Sensing Estimation Delay Time

doi: 10.11999/JEIT170122
Funds:

Zhejiang Province Science and Technology Plan Public Welfare Technology Application Research Project (2017C31055), 2017 Open Research Foundation of Electronics Science and Technology for Top-ranking Discipline A Class in Zhejiang Province

  • Received Date: 2017-02-15
  • Rev Recd Date: 2017-08-17
  • Publish Date: 2017-11-19
  • In order to improve the spectrum efficiency in the cognitive radio networks, the optimization algorithm of the spectrum sensing estimation time is presented. The longer sensing time will bring two aspects of the consequences. On the one hand, the channel parameters are estimated more accurate so as to reduce the interference to the authorized users and to improve the throughput of the cognitive users. On the other hand, it shortens the transmission time so as to decease the system throughput. In this time, it exists an optimal sensing time to maximize the throughput. It is considered that the channel state information of sub-bands is exponentially distributed, so a stochastic programming method is proposed to optimize the sensing time of the cognitive radio networks. The computer simulation results show that the algorithm is effective and has a certain engineering application value.
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