Vertical Handoffs for Optimizing Joint Radio Resource Management in Heterogeneous Wireless Networks

被引:0
|
作者
Li Mingxin [1 ]
Xie Dongliang [1 ]
Hu Bo [1 ]
Shi Yan [1 ]
Chen Shanzhi [2 ]
机构
[1] Beijing Univ Posts & Telecommun, State Key Lab Switching & Networking Technol, Beijing 100088, Peoples R China
[2] China Acad Telecommun Technol, State Key Lab Wireless Mobile Commun, Beijing, Peoples R China
关键词
vertical handoff decision; heterogenerous wireless network; utility; blocking rate; dropping rate; user satisfaction; CALL ADMISSION CONTROL;
D O I
暂无
中图分类号
TP3 [计算技术、计算机技术];
学科分类号
0812 ;
摘要
Coexistence of heterogeneous wireless networks (HWNs) to provide ubiquitous service is an inevitable trend. Vertical Handoffs (VHOs) are crucial requirements for convergence of different access technologies. In this paper, a utility-based VHO decision algorithm is proposed. A profit function is used to calculate the profits gained from a VHO and to select the target network accordingly. Signaling overhead, handoff delay and load of network is used to model loss function when a VHO occurs. The VHO algorithm and trigger rules of this paper are proportional to optimize the utilization of radio resource. Simulation results present that our proposal gains lower blocking rate, dropping rate, handoff times and higher throughput. And user satisfaction is improved.
引用
收藏
页码:409 / +
页数:2
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