V2X通信的资源管理及功率控制算法

Efficient Resources Allocation and Power Control for V2X Communications

作为智能交通系统(Intelligent Transport System,ITS)有效支撑技术,车至一切(Vehicle-toeverything,V2X)通信近期受到广泛关注。V2X通信具有严格的时延要求。而5G蜂窝的设备至设备(Device-to-Device,D2D)通信可以满足时延要求。为此,对基于D2D通信的V2X服务的无线资源管理策略进行研究,并面向V2X通信,提出有效的资源分配和功率控制(Resources Allocation and Power Control,RAPC)算法。RAPC算法旨在最大化车-基础设施(Vehicle-to-infrastructure,V2I)用户的信道容量,并满足车-车(Vehicle-to-Vehicle,V2V)用户的时延要求。仿真结果表明,提出的RAPC算法的资源利用率、吞吐量的性能优于同类算法。

Vehicle-to-everything( V2 X) communication has been significantly studied in recent years due to its potential to improve intelligent transport systems( ITS). V2 X technology has strict latency and reliability requirements. Therefore,the underlay Device-to-Device( D2 D) communication of the future5 G cellular networks enables V2 X to meet its requirements. This paper investigates the radio resource management for V2 X services based on D2 D communication. And an Efficient Resources Allocation and Power Control for V2 X communications( ERAPC) algorithm is proposed in this paper. The main objectives are to maximize the sum rate of V2 I users and to guarantee the delay requirement of V2 V users.Simulation results show that ERAPC algorithm achieves the best performance in comparison with other existing methods,in term of RBs utilizations,throughput.