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针对煤矿巷道岔道多、巷道长的无线通信环境特点,提出一种基于簇的分布式合作频谱感知技术的算法,该算法选取每个巷道分支中SNR最大的节点作为簇头,簇间用分布式合作方式进行频谱感知。仿真结果表明,该算法不仅可以提高低信噪比下的检测概率,而且可以改善合作频谱感知的安全性。
Aiming at the characteristic of wireless communication environment with many branches and long tunnels in coal mine roadway, a cluster-based distributed cooperative spectrum sensing algorithm is proposed. This algorithm selects the node with the highest SNR in each branch as the cluster head, Cooperation way for spectrum sensing. The simulation results show that the proposed algorithm can not only improve the detection probability at low signal-to-noise ratio, but also improve the security of cooperative spectrum sensing.