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Dynamic spectrum access for cognitive radio networks based on reservation channels

机译：基于预留通道的认知无线电网络的动态频谱访问

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摘要

Dynamic spectrum access has become a promising approach to fully utilize the scarce spectrum resources. In this paper, we propose a newly distributed channel selection algorithm for cognitive radio networks (CRN). Our algorithm is based on reservation channels and does not need a common control channel. Both the dynamic states of the channels and the effects of imperfect spectrum sensing are considered in this algorithm. By deriving the optimal number of reservation channels, a good balance between the success probability of channel selection and minimal average channel switching times can be achieved. Simulation results show that our algorithm is highly adaptable and resilient to dynamic channels, and achieves better performance than Simple Channel Selection (SCS) algorithm.
机译：动态频谱访问已成为充分利用稀缺频谱资源的有希望的方法。在本文中，我们提出了一种用于认知无线电网络（CRN）的新分布式信道选择算法。我们的算法基于预约通道，不需要公共控制信道。在该算法中考虑了通道的动态状态和不完全频谱感测的效果。通过导出最佳预留信道的数量，可以实现频道选择的成功概率和最小平均信道切换时间之间的良好平衡。仿真结果表明，我们的算法具有高度适应性和有弹性的动态通道，并实现比简单频道选择（SCS）算法更好的性能。

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