基于终端移动与业务到达认知的自适应无线接入控制机制  

Adaptive Radio Access Control Scheme Based on Terminal Mobility and Service Arriving Cognition

作　　者：苏伟[1] 刘琪[2] 袁坚[3] 山秀明[3] 张宏科[1] 

机构地区：[1]北京交通大学电子信息工程学院,北京100044 [2]中国联通研究院,北京100048 [3]清华大学电子工程系信息网络与复杂工程系统实验室,北京100084

出　　处：《电子学报》2011年第9期2148-2153,共6页Acta Electronica Sinica

基　　金：国家973重点基础研究发展计划(No.2007CB307105);国家自然科学基金(No.60903150);博士后基金(No.20100480328)

摘　　要：在未来移动互联网中,异种网络之间的密切合作将为用户提供无缝的业务链接.终端移动与业务到达的突发性造成了网络负载在时空域的不均衡分布,成为影响网络性能的重要因素.自适应的无线接入控制机制是均衡异种网络负载、提高无线资源利用率的有效途径.首先,本文提出了一种新的基于终端移动与业务到达认知的动态负载均衡策略.然后,根据业务到达的统计分析结果,通过终端分类与移动建模,创建了一种基于用户小区驻留时间的自适应无线接入控制机制.最后,仿真结果验证了该机制的有效性.In future Mobile Internet,co-operation among heterogeneous networks will provide users with seamless services.Mobility of terminals and burst arrival of services cause disproportional network load distribution in time and space domain,which is a key factor influencing network performance.Adaptive radio access control scheme is an effective approach for load balancing among heterogeneous networks,improving utilization of radio resources.Firstly,a new dynamic load balance policy based on terminal mobility and service arriving cognition is proposed.Furthermore,according to statistic analysis of service arriving data,an adaptive radio access control scheme based on users＇ cell resident time is raised.It is realized through terminal classification and mobility modeling.Finally,performance of the above scheme is verified by simulation results.

关 键 词：无线接入控制 业务到达 异种网络 负载均衡 

分 类 号：TN929[电子电信—通信与信息系统]