基于高效协作感知算法的认知无线电研究

摘要

针对协作频谱感知中感知开销过高问题,提出了一种联合考虑选择最佳的感知节点数以及感知的信道数来降低协作感知开销的方法.该算法分析了协作感知算法中感知节点数、感知的授权信道数与协作感知精度以及感知开销之间的关系.仿真结果表明,与其他算法相比,该算法能够有效地降低感知开销并提高系统的感知性能,验证了该算法的有效性.%Concerning the problem of high sensing overhead in the cooperative spectrum sensing, this paper proposed a method that can choose the best number of sensing nodes and channels to reduce the sensing overhead. The algorithm analyzed the number of users, the number of licensed channels, cooperative sensing precision, sensing overhead and their relations. Compared with other algorithms, simulation results show that the proposed algorithm can reduce the sensing overhead and improve the cooperative sensing of performance, which prove the effectiveness of this method.