Spectrum Handoff Method Based on Extenics for Cognitive Radio Sensor Networks
Spectrum Handoff Method Based on Extenics for Cognitive Radio Sensor Networks
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DOI：
10.3991/ijoe.v12i03.5418
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发表时间：
2016-01-01
影响因子：
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通讯作者：
Fu, Yuli
中科院分区：
文献类型：
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作者：
Wang, Yonghua;Wan, Pin;Fu, Yuli
针对认知无线电传感器网络中频谱切换的最优信道决策问题，提出了一种基于可拓学的频谱切换模型和最优信道决策方法。采用物元可拓学方法对频谱切换过程进行了分析。通过频谱感知和主用户的状态信息对信道状态进行物元可拓学分析和转换。然后基于可拓学的相关函数计算确定最佳信道的参数。最后选择最优信道。仿真结果表明，该方法可以提高认知无线电传感器网络的频谱利用率，降低第二用户的中断概率。
A spectrum handoff model and optimal channel decision method based on Extenics have been proposed in order to resolve the optimal channel decision problem of spectrum handoff in Cognitive Radio Sensor Networks. The method of matter-element Extenics is used to analyses the spectrum handoff process. The channel state through the spectrum sensing and status information of the primary users is analyzed and transformed by matter-element Extenics. Then the parameters to determine the best channel are calculated on the basis of Extenics correlation function. Finally the optimal channel is selected. The simulation results show that the proposed method can improve spectrum utilization efficiency of Cognitive Radio Sensor Networks and can reduce the interrupt probability of second users.