认知无线网络频谱分配策略的社会最优问题研究
发布时间：2019-02-13 19:51
【摘要】：结合离散时间排队理论和博弈论,进行了认知无线网络中频谱分配策略的社会最优问题的研究。考虑到主用户(PUs)对次级用户(SUs)数据包的传输中断,建立了一个带有传输中断及中断重传的排队模型,并使用矩阵几何解的方法进行排队模型的稳态分析,给出了次级用户数据包的平均延迟。从不可观察的排队规则出发,令次级用户数据包根据传输所获得的回报及逗留在系统中所花费的代价决定是否加入缓存,揭示次级用户数据包在个人最优策略下的加入率大于社会最优策略下的加入率。针对不同的数据包到达率及服务率,通过数值实验,给出了次级用户接入频谱的合理费用,实现频谱分配的社会最优。
[Abstract]:Based on discrete time queuing theory and game theory, the social optimal problem of spectrum allocation strategy in cognitive wireless networks is studied. Considering the transmission interruption of secondary user (SUs) data packet by primary user (PUs), a queue model with transmission interrupt and interrupt retransmission is established, and the steady-state analysis of queue model is carried out by using the method of matrix geometric solution. The average delay of secondary user packet is given. Unobservable queuing rules allow secondary user packets to decide whether to join the cache based on the return they receive from the transmission and the cost of staying on the system. It is revealed that the rate of joining secondary user packets under the individual optimal strategy is greater than that under the social optimal strategy. According to different packet arrival rate and service rate, the reasonable cost of secondary users' access spectrum is given through numerical experiments, and the social optimum of spectrum allocation is realized.
【作者单位】： 燕山大学信息科学与工程学院;河北省计算机虚拟技术与系统集成重点实验室;
【基金】：国家自然科学基金(11201408) 河北省自然科学基金(2012203093)资助项目
【分类号】：TN925;O226
，
本文编号：2421798
[Abstract]:Based on discrete time queuing theory and game theory, the social optimal problem of spectrum allocation strategy in cognitive wireless networks is studied. Considering the transmission interruption of secondary user (SUs) data packet by primary user (PUs), a queue model with transmission interrupt and interrupt retransmission is established, and the steady-state analysis of queue model is carried out by using the method of matrix geometric solution. The average delay of secondary user packet is given. Unobservable queuing rules allow secondary user packets to decide whether to join the cache based on the return they receive from the transmission and the cost of staying on the system. It is revealed that the rate of joining secondary user packets under the individual optimal strategy is greater than that under the social optimal strategy. According to different packet arrival rate and service rate, the reasonable cost of secondary users' access spectrum is given through numerical experiments, and the social optimum of spectrum allocation is realized.
【作者单位】： 燕山大学信息科学与工程学院;河北省计算机虚拟技术与系统集成重点实验室;
【基金】：国家自然科学基金(11201408) 河北省自然科学基金(2012203093)资助项目
【分类号】：TN925;O226
，
本文编号：2421798
本文链接：https://www.wllwen.com/kejilunwen/wltx/2421798.html
