随着蜂窝通信系统的不断演进与发展，LTE-A标准的提出对信道带宽、频谱效率、传输质量、传输时延的要求进一步提高。在当前用户数量急剧增加，小区负载沉重的网络环境下以基站为核心的蜂窝通信系统面临着严峻的挑战。D2D(Device-to-Device）通信技术以其高频谱利用率，大传输速率的优势为解决蜂窝网络频谱资源匮乏问题以及突破传输速率瓶颈带来了新的思路。D2D通信可在一定距离范围内不经过基站转发直接传输数据，减少了传输时延，同时还可以复用蜂窝用户资源进行通信，极大地提高了传输速率和频谱利用率。然而D2D通信通过复用蜂窝资源提升系统性能的同时也带来了系统内的同频干扰，如果不加以抑制，会对双方的通信质量造成严重的影响。

本文在研究LTE-A与D2D混合通信系统网络架构的基础上，通过系统建模分析了D2D通信复用蜂窝资源的各种干扰场景，总结出影响干扰的主要因素，进而针对这些因素分别从资源分配和功率控制的角度进行干扰抑制。本文在多种网络场景下对D2D与蜂窝混合通信系统中的干扰抑制问题进行研究，主要工作包括：

从增加干扰双方距离这个角度出发，考虑了小区间干扰，分析了现有基于干扰限制区域(ILA)的资源分配算法无法根据信道状态灵活改变复用资源数量的缺点，设计出改进型基于动态干扰限制区域(DILA)的复用多用户资源算法；

从控制 D2D用户发射功率的角度出发，分析了现有闭环功率控制算法不能根据用户位置信息为用户分配合适的路损补偿因子的不足，在此基础上设计了改进型基于动态补偿因子的功率控制算法；

改进原有LTE-A系统级仿真平台，增加D2D协议栈功能实体，设计了D2D与LTE-A混合通信网络系统级仿真平台，并分别对本文所设计的功率控制算法和资源分配算法进行仿真分析。通过仿真证明本文所提出的算法在性能上较改进之前的算法有所提高。

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