基于终端协同的并行多流速率分配算法研究  

Research on Rate Distribution Algorithm of Parallel Multi-flow Based on Terminal Cooperation

作　　者：耿瑞芳[1] 张晖[1] 杨龙祥[1] 朱洪波[1] 

机构地区：[1]南京邮电大学江苏省无线通信重点实验室,江苏南京210003

出　　处：《电视技术》2015年第12期32-37,50,共7页Video Engineering

基　　金：国家自然科学基金项目(61471203;61101105);教育部博士点基金项目(20113223120001);江苏省博士后科研基金项目(1102012C);国家科技重大专项项目(2012ZX03001008-003);江苏"973"计划项目(BK2011027)

摘　　要：为充分利用用户周围的网络资源以及终端资源,为用户提供更优质的用户体验,终端协同成为研究热点。针对基于终端协同的多流并行传输问题,提出了一种多属性决策的并行多流速率分配算法。进行从终端选择时,通过多属性决策算法综合考虑终端用户主观喜好,以及各终端及其接入网之间的客观差异。在速率分配的过程中,以各网络资源为约束,不断地进行速率调整。此算法在实现从终端选择的同时完成了各协同终端之间的速率分配。通过仿真后的性能分析表明,所提算法不仅能够充分利用优势网络的资源,还可满足网络资源的约束以及减少能耗,同时也能满足用户业务体验。In order to make full use of the networks＇ and terminals＇ resources among users, and to provide better experience for users, terminal cooperation has become a key research. Aiming at the multi-flow parallel transmission problems based .on the terminal cooperation, a rate distribution algorithm of parallel multi-flow transmission is proposed based on multi-attribute decision making. In the terminal selection, preference of users as well as the objective differences between terminals and access networks is considered based on muhi-attribute decision making algorithm. In the process of rate distribution, the rates allocated will be adjusted constantly and subject to network resources. While it achieves the terminals selections, this algorithm can complete the rate distribution among cooperative terminals. Analysis by simulation figures shows that the algorithm presented in the paper can not only make full use of the advantages of network resources, but also meet the constraints of the network resources and decrease the energy consumption. At the same time, it can also satisfy the service experience of users.

关 键 词：无线泛在环境 终端协同 多属性决策 从终端选择 速率分配 

分 类 号：TN929.5[电子电信—通信与信息系统]