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异构网络中基于用户需求的垂直切换算法
引用本文:但峰,黄传河,杨淑娟,何凯,王小毛. 异构网络中基于用户需求的垂直切换算法[J]. 武汉理工大学学报(信息与管理工程版), 2011, 33(6): 868-870,882. DOI: 10.3963/j.issn.1007-144X.2011.06.005
作者姓名:但峰  黄传河  杨淑娟  何凯  王小毛
作者单位:武汉大学计算机学院,湖北武汉,430072
基金项目:国家自然科学基金资助项目
摘    要:采用不同的无线接入技术的多种网络的融合可以提高无线传输性能,为移动用户提供随时随地的网络连接。垂直切换是异构无线网络相互融合的基础,在垂直切换过程中,切换判定是一个非常重要的环节,直接决定切换性能。提出了一种基于用户属性与需求的切换算法,根据用户类型以及用户的QoS需求选择相应的切换策略,能有效地提高垂直切换性能。

关 键 词:垂直切换  异构无线网  切换时延  剩余带宽

A Vertical Handoff Algorithm Based on Requirement of Users in Heterogeneous Networks
DAN Feng,HUANG Chuanhe,YANG Shujuan,HE Kai,WANG Xiaomao. A Vertical Handoff Algorithm Based on Requirement of Users in Heterogeneous Networks[J]. Journal of Wuhan University of Technology(Information & Management Engineering), 2011, 33(6): 868-870,882. DOI: 10.3963/j.issn.1007-144X.2011.06.005
Authors:DAN Feng  HUANG Chuanhe  YANG Shujuan  HE Kai  WANG Xiaomao
Affiliation:DAN Feng,HUANG Chuanhe,YANG Shujuan,HE Kai,WANG Xiaomao Doctorial Candidate,School of Computer,Wuhan University,Wuhan 430072,China.
Abstract:A combination of diverse and complementary wireless access technologies will improve wireless transmission performance and provide mobile users with ubiquitous connectivity.Vertical handoff is the basic requirement for the integration of heterogeneous wireless networks.During the vertical handoff procedure,handoff decision is a crucial issue for an efficient mobility.In this paper,according to the QoS and type of users,a vertical handoff algorithm was proposed,and its performance was obviously improved.
Keywords:vertical handoff  heterogeneous networks  handoff delay  rest bandwidth  
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