【摘要】 在蜂窝网络中部署D2D(Device-to-Device)通信能够有效提升频谱利用率,降低基站负载,但D2D用户与蜂窝用户共享无线信道时会产生信号干扰。提出了一种联合资源分配算法,通过综合考虑信道分配对网络中已有的蜂窝用户和D2D用户的信号干扰,并在小区范围内寻找具有最小干扰值的信道资源分配给用户,以实现有效的干扰控制。仿真结果显示:联合资源分配能够提升D2D链路、蜂窝链路的信噪比及系统总吞吐量,使得蜂窝网络的整体性能优于独立资源分配。更多还原

【Abstract】 Device-to-Device(D2D) communication can effectively improve the spectrum efficiency,and reduce the load of Base Station in cellular networks. However,when D2 D users and cellular users share the wireless channels,it will bring signal interference for the cellular networks. A joint resource allocation algorithm is proposed,by considering the impact of channel allocation to the network in the cellular users and D2 D users,and in the area of radio resource allocation for a minimum interference value to the user,to realize the control of effective jamming. The simulation results illustrate that the method can effectively improve signal-to-noise ratio of the D2 D link,cellular link,and the total throughput of the system. It obtains the better overall performances than independent resource allocation methods in cellular networks.更多还原