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合作感知系统中最优合并准则下的用户删除方法

DOI: 10.13190/jbupt.201004.114.sunjf, PP. 114-117

Keywords: 认知无线电,合作感知,最优合并准则,用户删除

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Abstract:

在IEEE802.22标准系统模型下分析了最优合并准则的性能及影响因素.在此基础上提出了用户删除的方法通过设置门限去除对最终判决影响较小的用户,从而大幅减少了合作感知的反馈信息,有效节省了反馈信道资源.理论分析和仿真结果显示,用户删除通过设置合理的门限可有效控制系统的性能损失,同时降低反馈信道资源需求,为进一步的系统优化打下了基础.

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