速率期望比较下的宽带频谱接入简化算法

为解决认知无线网络中宽带频谱感知模式的计算量大和感知时间延长等问题，提出了一种基于速率的认知无线网络低复杂度宽带频谱感知算法。在宽带频谱感知的基础上，设定选择条件，对信道的期望传输速率进行比较，确定需要感知的信道，以实现减少认知无线网络次用户系统的信道感知时间和感知计算量的目标。经过仿真实验分析对比表明，该算法可以有效地平衡次用户系统吞吐量最大化和主用户系统的干扰之间的矛盾。

Low-complexity broadband spectrum access algorithm under comparison of rate expectations

To solve cognitive wireless network broadband spectrum sensing modes computationally intensive and prolonged perception problems, a rate-based cognitive wireless networks with low complexity wideband spectrum sensing algorithm has been proposed. In the broadband spectrum sensing based on set selection criteria, the expectations of the channel transfer rate are compared to determine the need to perceive the channel, in order to achieve reduced cognitive wireless network system channel secondary users perception of time and perception of the calculated amount of goals. After analysis and comparison of simulation, experiments show that the algorithm can effectively balance the secondary user system throughput maximization and the main conflicts between the interference of the user’s system.