异构网中D2D和小蜂窝用户的资源分配方案

Resource allocation scheme for D2D and small cellular users in heterogeneous network

为提高系统吞吐量和频谱利用率,将终端直通技术(D2D)和小蜂窝技术引入蜂窝网络,组成三层异构网,在此网络下研究D2D用户和小蜂窝用户的资源分配问题,在满足宏蜂窝用户、D2D用户和小蜂窝用户的通信质量的条件下提出一种启发式资源分配方案。为了使得系统吞吐量得到提升,提出一种基于干扰控制的资源分配算法。仿真结果表明,所提算法在复杂度上有所降低,并有效的提升了系统总吞吐量。

To improve system throughput and spectrum utilization,device-to-device(D2D)communication and small cell techno-logy were introduced into cellular networks to form three-tier heterogeneous network,the problem of resource allocation of D2D users and small cell users in this network was mainly studied,and a heuristic resource allocation scheme for satisfying the communication quality of macro cellular users,D2D users and small cellular users was proposed.The computational complexity was reduced,and region limitation was used on base stations and users.In order to improve the system throughput,a resource allocation algorithm based on interference control is proposed.The simulation results indicate that the proposed algorithm has a lo-wer complexity and effectively improves the total system throughput.