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基于冲突图模型形成的二进制整数规划,提出了一种蜂窝网络中支持D2D通信的无线资源分配方法.首先,提出一种频率资源分配算法,即为每个D2D链路都分配一个频率资源块.分配频率资源时将尽可能地利用蜂窝网络中的无线频率资源空间重用机会.然后,提出一种时隙调度算法,即为所有分配同一频率资源块的D2D链路进行时隙资源调度.调度时隙资源时将保证使用同一频率资源块的D2D链路之间达到长期平均吞吐率的比例公平.通过计算机仿真对所提出方法的性能进行了验证,结果表明该方法能够在蜂窝网络中实现D2D通信功能.
Based on the binary integer programming formed by the collision graph model, a wireless resource allocation method supporting D2D communication in cellular networks is proposed.Firstly, a frequency resource allocation algorithm is proposed, which allocates one frequency resource block for each D2D link. When allocating frequency resource, it will use the opportunity of spatial reuse of wireless frequency resources in the cellular network as much as possible.Then, a scheduling algorithm of the time slot is proposed to schedule the resource for all the D2D links allocated the same frequency resource block. The gap resources will guarantee the fair proportion of the long-term average throughput between the D2D links using the same frequency resource block.The performance of the proposed method is verified by computer simulation and the results show that the method can realize D2D communication in a cellular network Features.