毫米波5G网络中D2D通信的资源分配方案  

Resource allocation scheme for D2D communication in mm Wave 5G networks

作　　者：易冰 陈永丽[1] 赵瑞雪 YI Bing;CHEN Yongli;ZHAO Ruixue(Research Center of New Telecommunication Technology Applications,Chongqing University of Posts and Telecommunications,Chongqing 400065,China;Chongqing Information Technology Designing Co.,Ltd.,Chongqing 401121,China)

机构地区：[1]重庆邮电大学通信新技术应用研究中心,重庆400065 [2]重庆信科设计有限公司,重庆401121

出　　处：《电信科学》2019年第1期138-146,共9页Telecommunications Science

摘　　要：由于将终端直通(device-to-device,D2D)技术与mmWave技术结合可以满足大容量的需求,考虑在户外毫米波场景下对D2D用户进行资源分配,其优化目标是最大化系统总的吞吐量。首先,通过线性相关方法选择出每个D2D用户的准入集合;然后,对D2D用户进行功率控制,选择其最佳的发射功率;最后,提出一种基于二部图的多阶段匹配算法为D2D用户分配资源,并利用多次KM算法求出分配结果。仿真结果表明,所提算法性能优于对比算法,有效提高了系统吞吐量和频谱利用率。Since the combination of device-to-device (D2D)and mmWave technology can meet the needs of large-capacity,resource allocation was considered for D2D users in an outdoor millimeter wave scenario.The optimal objective was maximize to the total system throughput.Firstly,the admission set of each D2D user was selected by a linear correlation method.Then,power control was performed on the D2D user to select the optimal transmit power. Finally,a multi-phase matching algorithm based on bipartite graph was proposed to allocate resources for D2D users,and the allocation result was obtained by using multiple KM algorithms.The simulation results show that the pro-posed algorithm is superior to the comparison algorithm,which effectively improves the throughput of the system and spectrum utilization.

关 键 词：终端直通 毫米波 资源分配 吞吐量 

分 类 号：TN929.5[电子电信—通信与信息系统]