基于超图聚簇和干扰限制区域理论的全双工D2D车载通信资源管理方案  

Resource management scheme for full-duplex device-to-device vehicular communication using hypergraph clustering and interference limited area theory

作　　者：肖海林 吴彬[2] 张中山 王承祥 周迪 Hailin XIAO;Bin WU;Zhongshan ZHANG;Chengxiang WANG;Di ZHOU(School of Computer and Information Engineering,Hubei University,Wuhan 430062,China;School of Information and Communication,Guilin University of Electronic Technology,Guilin 541004,China;School of Information and Electronics,Beijing Institute of Technology,Beijing 100081,China;State Key Laboratory of Mobile Communications,Southeast University,Nanjing 210096,China;Laboratory of Network Communication and Security,Purple Mountain Laboratories,Nanjing 211111,China;Zhejiang Yushi Technology Co.,Ltd.,Hangzhou 310051,China)

机构地区：[1]湖北大学计算机与信息工程学院,武汉430062 [2]桂林电子科技大学信息与通信学院,桂林541004 [3]北京理工大学信息与电子学院,北京100081 [4]东南大学移动通信国家重点实验室,南京210096 [5]网络通信与安全紫金山实验室,南京211111 [6]浙江宇视科技有限公司,杭州310051

出　　处：《中国科学：信息科学》2021年第1期139-156,共18页Scientia Sinica(Informationis)

基　　金：国家自然科学基金(批准号:61872406,61472094);浙江省重点研发计划项目(批准号:2018C1059)资助。

摘　　要：在蜂窝车用无线通信(cellular vehicular-to-everything,C-V2X)系统中,车辆快速移动导致D2D链路的网络拓扑不稳定,频繁重构的网络拓扑增加了同频干扰问题的复杂度和拓扑管理信令的数量,造成基站的计算能力和带宽资源浪费.本文建立以簇为核心的全双工D2D(full-duplex device-to-device,FD-D2D)车载通信模型,提出基于超图聚簇(hypergraph clustering,HG-C)和干扰限制区域(interference limited area,ILA)理论的FD-D2D车载通信资源管理方案.利用链路依赖度(degree of link dependence,DLD)和车辆用户(Vehicle users,VUE)的计算能力提高簇的生存时间,降低基站的开销.同时,利用动态功率控制和复用区域映射辅助基站分配资源,削弱复用相同蜂窝链路的V-D2D(vehicular device-to-device)链路间和对蜂窝链路的同频干扰,提高频谱效率.最后,基于交通仿真建模软件VISSIM产生实时交通流数据,从而验证本文所提资源管理方案,结果表明:基站承担的网络拓扑管理任务量至少降低50%,与传统蜂窝D2D车载通信相比,频谱平均复用次数增加0.5次以上,频谱效率增加10%.In cellular vehicle-to-everything systems,the rapid movement of vehicles leads to the network topology instability of device-to-device(D2 D)links.The frequent reconfiguration of network topology increases the complexity of the same frequency interference problem and the amount of signaling overhead for the management of network topology,which result in the waste of the computation ability and bandwidth resources of the base station(BS).In this paper,we establish a full-duplex device-to-device(FD-D2 D)vehicular communication model with cluster as the core and propose a resource management scheme for FD-D2 D vehicular communication by using hypergraph clustering and interference limited area theory.In the proposed scheme,the degree of link dependence and the computation ability of vehicle users are utilized to improve the cluster survival time and reduce the BS overhead.Meanwhile,dynamic power control and sharing area mapping are used to assist the BS in allocating resources,reduce the co-frequency interference between vehicular device-to-device(V-D2 D)links and between V-D2 D links and cellular links that reuse the same frequency,and improve spectrum efficiency.Realtime traffic flow data are generated by the traffic simulation modeling software VISSIM to verify the proposed resource management scheme.Simulation results show that the network topology management workload of the BS is reduced by at least 50%.Relative to that in traditional cellular D2 D vehicle communication,the average frequency of spectrum sharing in FD-D2 D communication increases by more than 0.5 times,and the spectrum efficiency increases by 10%.

关 键 词：C-V2X 超图聚簇 干扰限制区域 FD-D2D车载通信 频谱复用 

分 类 号：U463.67[机械工程—车辆工程] TN929.5[交通运输工程—载运工具运用工程]