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Multihop Multibranch Spectrum Sensing for Cognitive Radio Networks

机译:认知无线电网络的多跳多刺光谱传感

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In this paper, we derive the detection probability of cooperative spectrum sensing using the energy detector with multiple branches and multihops in each branch. The primary signal passes through Li hops in the ith branch. Two cooperation protocols are considered. In the first one, the fusion center combines the signal of all branches, and it is known as all-participating relaying. It requires multiples channels for branch transmissions to avoid interferences. In the second one, only the branches with the highest SNR are activated. The results are valid for any number of hops and branches. We also consider situations where the direct link is available or not. We have studied the evolution of the detection probability with respect to the signal-to-noise ratio for a constant false alarm rate.
机译:在本文中,我们使用具有多个分支和多振作的能量检测器来得出协同谱检测的检测概率。主要信号通过第i个分支中的李跳。考虑了两方合作协议。在第一个中,融合中心组合了所有分支的信号,并且称为全参与的中继。它需要倍增通道用于分支传输以避免干扰。在第二个中,仅激活具有最高SNR的分支。结果对于任意数量的啤酒花和分支有效。我们还要考虑直接链接可用的情况。我们已经研究了相对于恒定误报率的信噪比的检测概率的演变。

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