摘要
传统蜂窝网络架构存在着不少缺陷,小区边缘用户的服务质量远差于靠近基站中心的用户。通过部署中继,并完善其切换算法,提出了在该蜂窝中继网络中基于中继协作的切换策略,且对小区内及小区间切换策略进行细化,这样可以更精确的选择接入站点。比较了传统切换与协作切换中的切换阻塞率以及切换次数,通过仿真证明基于中继协作的协作切换的切换阻塞率小于传统切换,且基站间切换次数也得到降低,减轻了基站的负担,使系统性能得到提升。
Because the traditional cellular networks have many shortcomings,service quality for the edge user is worse than those near the base station.Through the deployment of the relay and improving the handover algorithm,we propose a handover decision strategy based on relay cooperation for this cellular relaying network.The handover strategy is refined in order to accurately choose an access station.Finally,the handover block rate and number of handover in cooperative handover and traditional algorithm are compared.The simulation results proved that the handover block rate in cooperative handover base on relay is lower and the number of handover between base stations is reduced,and the network performance is improved.
出处
《微处理机》
2013年第2期17-20,共4页
Microprocessors
基金
河海大学常州校区创新基金(XZX/09B002-03)
关键词
蜂窝中继网络
切换
中继
协作
Cellular relaying networks
Handover
Relay
Cooperative
