高密度D2D用户的潜在博弈资源分配算法  

Potential Game Theory-Based Resource Allocation Algorithm of High-Density D2D Users

作　　者：兰冰[1] 李兵兵[1] 刘佳[1] 常俊仁[2] 

机构地区：[1]西安电子科技大学综合业务网理论及关键技术国家重点实验室,陕西西安710071 [2]华为技术有限公司,广东深圳518129

出　　处：《华南理工大学学报（自然科学版）》2015年第1期41-46,52,共7页Journal of South China University of Technology(Natural Science Edition)

基　　金：国家科技重大专项项目(2013zx03003011-003);华为创新研究计划项目(YJCB2011002HI)~~

摘　　要：为解决高密度用户场景中多个设备到设备(D2D)用户复用同一个蜂窝用户资源时相互竞争的问题,提出了一种基于博弈论的D2D资源分配算法.首先构造基于最小化系统整体干扰的非合作博弈效用函数,同时考虑了系统中D2D用户之间的干扰以及D2D用户与蜂窝用户之间的干扰;继而设计该博弈的潜在函数,并证明该博弈过程是一个潜在博弈模型,进而证明了其纳什均衡的存在性.仿真结果表明,该算法相比现有方法具有更好的公平性和收敛性,能使用户获得更好的吞吐量,降低D2D用户受到的干扰.In order to solve the contesting among multiple device-to-device （D2D） users reusing the resource of one cellular user in high-density user scenarios, a D2D resource allocation algorithm on the basis of game theory is proposed. Firstly, a utility function minimizing the system interference is proposed, which considers both the interference among D2D users and the interference between D2D users and cellular users. Secondly, a potential function of this game is designed. Then, the potential game nature of utility function as well as the existence of Nash equilibrium is proved. Simulated results show that the proposed algorithm possesses better system level fairness and convergence, improves system throughput, and reduces the interference to D2D users.

关 键 词：设备到设备用户 资源分配 博弈论 干扰降低 

分 类 号：TN911.7[电子电信—通信与信息系统]