异构网络下带内回程基站部署方案

Deployment Scheme of In-Band Backhaul Base Station in Heterogeneous Network

针对异构密集蜂窝网络中小基站双工模式不同导致的网络干扰,设计一种带内全双工(IBFD)基站部署方案。建立IBFD基站部署的最优化模型,利用基于贪心算法的混合带内/外全双工模式选择算法近似求解该模型,并通过部署适当比例的带内回程基站以最大化系统容量。仿真结果表明,该方案能有效协调小基站对宏基站的跨层干扰与小区间干扰,提高系统频谱效率。

To address network interference caused by different duplex modes of small base stations in heterogeneous dense cellular network,this paper proposes a deployment scheme of In-Band Full Duplex(IBFD)base stations.Firstly,an optimal model for IBFD base station deployment is built,and its approximated solution is obtained by using hybrid in-band/out-band full duplex mode selection algorithm based on a greedy algorithm.Then an appropriate proportion of in-band backhaul base stations are deployed to maximize the system capacity.Simulation results show that the proposed scheme can effectively coordinate cross-layer and inter-cell interferences caused by small base stations to macro base stations,improving the spectrum efficiency of the system.