一种LTE网络D2D通信资源共享算法  

A Resource Sharing Algorithm for D2D Communication Within LTE Networks

作　　者：荣涛[1] 吴斌[1] 糜正琨[1] 

机构地区：[1]南京邮电大学通信与信息工程学院,江苏南京210003

出　　处：《南京邮电大学学报（自然科学版）》2013年第3期85-90,共6页Journal of Nanjing University of Posts and Telecommunications：Natural Science Edition

基　　金：国家自然科学基金(60872018)资助项目

摘　　要：在LTE网络下部署D2D(Device-to-Device)系统能有效降低基站的负荷,但是D2D系统共享蜂窝系统资源时会产生系统间干扰,通过合理的资源分配可以有效降低这种干扰。文中提出一种LTE网络中D2D贪婪资源分配算法,该算法能保证蜂窝系统不受D2D通信的干扰影响,同时单个D2D对可以复用多个蜂窝用户资源,以提高D2D系统的吞吐量。最后通过仿真给出本算法与随机分配和干扰感知分配算法的性能比较。Device-to-Device communication can effectively reduce the load of eNodeB in LTE networks.However,while sharing radio resources between D2D and cellular systems,there will be interference between systems.It can be effectively alleviated with reasonable resource allocation.A greedy resource allocation algorithm is proposed for D2D with LTE networks.It can guarantee the cellular system exempt from the D2D interference while a D2D pair sharing resources of multiple cellular users to increase the throughput of D2D system.The simulation results have shown the performance comparison between the proposed algorithm,random allocation algorithm and interference-aware resouce allocation algorithm.

关 键 词：LTE D2D 资源调度 功率控制 

分 类 号：TN915[电子电信—通信与信息系统] TN911.22[电子电信—信息与通信工程]