基于资源分配和功率控制的D2D中继选择  

D2D Relay Selection Based on Resource Allocation and Power Control

作　　者：曹型兵 王伟超 

机构地区：[1]重庆邮电大学通信工程应用研究所,重庆400065 [2]重庆邮电大学移动通信技术重庆市重点实验室,重庆400065

出　　处：《电讯技术》2017年第12期1433-1439,共7页Telecommunication Engineering

基　　金：长江学者和创新团队发展计划资助项目(IRT1299);重庆市科委重点实验室专项经费资助项目(cstc2013yykf A40010)

摘　　要：为优化蜂窝用户通信与设备直传(D2D)中继通信共存下的同频干扰问题,满足蜂窝用户容量要求,提出了一种基于能效的联合资源分配和功率控制的D2D中继选择算法。该算法首先对等效D2D中继链路进行资源分配,减小算法复杂度的同时使得D2D链路对蜂窝链路产生的干扰最小;然后以资源分配结果和功率控制算法为依据进行中继选择。该方案不仅考虑了D2D中继链路的能效问题,而且还同时考虑到了对蜂窝链路的干扰问题。通过仿真验证,所提算法不仅能有效提升D2D中继链路的能效值,同时降低了对蜂窝用户的干扰。In order to optimize the problem of co-channel interference（CCI） after introducing the device-to-device（D2D） relay communication,and to meet the cellular user capacity requirements,a D2D relayselection algorithm based on energy efficiency combined resource allocation with power control is proposed.Firstly,the algorithm allocates spectral resource to the equivalent D2D relay links,reduces the complexity ofthe algorithm and minimizes the interference caused by the D2D link to the cellular link,and then selectsthe relay based on the resource allocation result and the power control algorithm. The scheme considers notonly the energy efficiency of the D2D relay link but also the cellular interference problem. Simulationproves that the proposed algorithm can not only improve the energy efficiency of the D2D relay link,but al-so reduce the interference to the cellular users.

关 键 词：D2D中继通信 资源分配 功率控制 中继选择 频谱效率 

分 类 号：TN929.5[电子电信—通信与信息系统]