论文部分内容阅读
在控制覆盖和业务覆盖分离的超蜂窝网络架构下,负责数据传输的业务基站可根据业务量的动态变化灵活休眠或唤醒,或将业务转移到相邻业务基站或上层控制基站,以有效降低网络能耗.而如何优化超蜂窝网络部署,并根据用户服务质量要求和网络业务量变化动态调整业务基站部署密度、休眠方式及无线资源分配,是超蜂窝网络中十分重要且具有挑战性的问题.本文总结了该领域的一系列研究成果:在高能效网络部署方面,面向控制基站和业务基站功能及拓扑结构的差异性采用不同的网络模型进行分析,基于随机几何理论分析给出了业务基站和控制基站的最优部署密度;在高能效基站动态控制方面,提出了基于负载转移的高能效动态基站休眠和频谱资源分配机制,可在保证网络覆盖及用户服务质量的前提下有效降低网络能耗.
In the super cellular network architecture with control coverage and service coverage separation, the service base station responsible for data transmission can flexibly hibernate or wake up according to the dynamic change of traffic or shift the service to the adjacent service base station or the upper control base station to effectively reduce the network How to optimize the deployment of the super-cellular network and dynamically adjust the deployment density, sleep mode and radio resource allocation of the service base station according to the quality of service of the user and the change of the network traffic are very important and challenging problems in the super-cellular network. This paper summarizes a series of research results in this field: In the aspect of energy-efficient network deployment, different network models are used to analyze the function and topological differences of control base station and service base station. Based on stochastic geometry theory, And control the optimal deployment density of base stations. In dynamic control of energy-efficient base stations, a dynamic energy-efficient base station dormancy and spectrum resource allocation mechanism based on load transfer is proposed, which can effectively reduce network energy consumption while ensuring network coverage and user service quality .