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认知无线电协作频谱感知,能量检测,硬判决,Voting模式-cooperative spectrum sensing, energy detection, hard decision, Voting model
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FPGA Implementation of Optimum Distributed
Sensing for Cognitive Radio Network. Very good research paper for optimal number of nodes and sensing time for cooperative detection.
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This code performs wide band Cooperative Spectrum Sensing under various noise levels. A large number of primary users as well as secondary users are considered.The detection is power spectral density based . This project gives the lower bound for the
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Optimization of cooperative spectrum sensing using energy detection
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前已提出的频谱感知方法主要包括匹配滤波器检测、 能量检测、 循环平稳特征检测以及多分辨率频谱感知. 这些方法均为单节点感知方法.然而,在阴影和深度衰落情况下, 单个节点的感知结果并不可靠, 因此, 需要对多个节点的感知结果进行融合,以提高检测可靠性, 即协作感知技术. 文献采用“或” 准则对各个 CR 感知结果进行融合. 文献则提出了基于 D-S 证据理论的协作频谱感知算法,虽然该算法的性能比“或” 准则或“与”准则要好, 但需要存储大量历史信息, 算法的计算复杂度也很高. 文献中分析了采用似然
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