LTE-A中基于准入控制的切换决策算法  

Handoff Decision Algorithm Based on Admission Control in LTE-A

作　　者：王华[1] 李鲁群[1] 王力[2] 

机构地区：[1]上海师范大学信息与机电工程学院,上海200234 [2]西安电子科技大学通信工程学院,西安710071

出　　处：《计算机工程》2011年第5期88-90,共3页Computer Engineering

基　　金：上海师范大学创新基金资助项目(SK201035;DZL703)

摘　　要：在E-UTRAN架构下,提出一种基于目标小区准入控制的切换决策算法。通过eNB之间的X2接口来交互网络的负载信息、资源信息和服务速率等,以此获得对目标小区准入控制的预测。构建曼哈顿模型场景,仿真结果证明,该切换算法有较高的切换成功率和较小的切换时延;并可将用户终端切换到负载比较轻的小区,使相邻小区的负载得到均衡,提高了无线资源的利用率。This paper provides a handoff decision algorithm based on admission control of target cell in the E-UTRAN architecture.In order to predict the admission control of target cell,it uses the X2 interface between eNBs to exchange the load information load network,resource information,and services rate of network.It constructs the Manhattan model.Simulation results indicate that the algorithm has higher successful handoff rate and smaller delay of handoff.It can switch the user terminal to the cell with lighter load,to make sure balancing the neighboring load and improving utilization of wireless resources.

关 键 词：准入控制 切换算法 负载均衡 曼哈顿模型 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]