认知网络中基于切换概率的频谱空洞匹配方案  

Spectrum Cavity Matching Scheme Based on Handover Probability in Cognitive Networks

作　　者：吴琼 曾亚 王旭东 颜爱良 邹维军 WU Qiong;ZENG Ya;WANG Xu-dong;YAN Ai-liang;ZOU Wei-jun(China Electronics Technology Group Corporation thirty-second Institute,Shanghai 201808)

机构地区：[1]中国电子科技集团公司第三十二研究所,上海201808

出　　处：《数字技术与应用》2018年第2期55-57,59,共4页Digital Technology & Application

摘　　要：针对目前认知无线网络中,只考虑授权用户的服务质量,很少考虑次用户服务质量的问题,兼顾无线频谱资源的使用效率,文中提出一种基于切换概率的频谱匹配方案,算法通过限制次用户通信过程中的切换概率,保证次用户的服务质量,使次用户在通信过程中的切换次数减少。仿真结果表明,使用切换概率与目标频谱切换概率进行匹配的方案可以更好的保证次用户系统的服务质量,减少频谱切换的次数。In view of the current cognitive wireless networks,only the quality of service of authorized users is considered,the quality of secondary users is seldom considered,and the use efficiency of wireless spectrum resources is taken into consideration.A spectrum matching scheme based on handover probability is proposed in this paper,Limit the probability of handover during the communication of the secondary user,ensure the service quality of the secondary user,and reduce the number of times of switching of the secondary user in the communication process.The simulation results show that the scheme that uses the handover probability and the target spectrum handover probability can better guarantee the service quality of the secondary user system and reduce the frequency of spectrum handover.

关 键 词：认知无线网络 频谱空洞 切换概率 

分 类 号：TN911.37[电子电信—通信与信息系统]