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.
出处
《华南理工大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
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)~~
关键词
设备到设备用户
资源分配
博弈论
干扰降低
device-to-device user
resource allocation
game theory
interference reduction
