针对当前设备到设备(D2D:Device-to-Device)通信在车联网端应用时只考虑提高D2D的复用模式的资源利用率或系统遍历容量，而未将D2D的其他模式纳入到系统内的问题，提出一种兼顾资源分配与模式选择的算法。通过优先复用模式的方式提高通信资源利用率，对不满足复用模式的D2D用户对(D-UE:Device-to-device UsErs)采用蜂窝模式，采取和蜂窝用户(C-UE:Cellular UsErs)相同的方案满足D-UE的基础需求，考虑D-UE用户与蜂窝用户和基站(BS:Base Station)距离、D-UE间的信噪比等因素对D-UE分配不同的资源接入模式。理论计算与仿真结果均表明所提资源分配与模式选择方案能有效提升系统容量及D-UE的服务质量(QoS:Quality of Service)。
Resource Allocation and Mode Selection Scheme of Internet for Vehicles Based on D2D
Aiming at the problem that the current D2D(Device-to-Device)communication applied in the Internet of Vehicles,is only considering the resource utilization rate or system traversal capacity of the D2D multiplexing mode,but does not include other D2D modes into the system,an algorithm that takes into account resource allocation and mode selection is proposed.The communication resource utilization rate is improved by the priority multiplexing mode,the cellular mode is adopted for the D2D vehicle pair(D-UE:Device-to-device UsErs)that does not meet the multiplexing mode,the C-UE(Cellular UsErs)is adopted to meet the basic requirements of D-UE,and different resource access modes are allocated to D-UE considering factors such as vehicle and cellular users,BS(Base Station)distance and signal-to-noise ratio between D-UE.Theoretical calculation and simulation results show that the proposed resource allocation and mode selection scheme can effectively improve the system capacity and D-UE QoS(Quality of Service).
D2D communicationresource allocationmode selectionvehicle networking communication
国家科技期刊平台
NSTL
万方数据
维普
