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应用科学学报 ›› 2010, Vol. 28 ›› Issue (6): 567-572.doi: 10.3969/j.issn.0255-8297.2010.06.003

• 通信工程 • 上一篇    下一篇

IP流分流的异构无线网络负载均衡

石文孝， 李斌， 刘妍， 郭磊   

  1. 吉林大学通信工程学院，长春130012
  • 收稿日期:2010-06-01 修回日期:2010-10-29 出版日期:2010-11-26 发布日期:2010-11-25
  • 作者简介:石文孝，教授，研究方向：现代通信理论与无线通信网络，E-mail：swx@jlu.edu.cn
  • 基金资助:

    国家自然科学基金(No.60972028)资助

Load Balancing by Dividing IP Flow over Heterogeneous Wireless Networks

SHI Wen-xiao, LI Bin, LIU Yan, GUO Lei   

  1. College of Communication Engineering, Jilin University, Changchun 130012, China  
  • Received:2010-06-01 Revised:2010-10-29 Online:2010-11-26 Published:2010-11-25

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2242

被引次数

43

摘要：

摘要： 针对传统异构无线网络硬负载均衡方法业务阻塞率较高的问题，根据软负载均衡方法，提出了异构无线网络中基于IP流分流的负载均衡算法. 该算法通过数值分析得到最佳分流比率，在用户请求网络接入或切换时，根据最佳分流比率将用户业务分成子流，并把各子流接入或切换到相应网络，保证了网络间的负载均衡. 仿真结果表明，所提算法相对于传统的硬负载均衡方法，降低了业务阻塞率和业务丢包率.

关键词: 异构无线网络；负载均衡；IP流分流；接入选择；切换

Abstract:

Abstract: As the traffic blocking probability of traditional hard load balancing methods is generally high over heterogeneous wireless networks, we propose a load balancing algorithm based on dividing the IP flow (LBD) over heterogeneous wireless networks based on the idea of soft load balancing. Through numerical analysis, we obtain the optimal flow-dividing ratio to determine the volume of traffic delivered to each network, which
maintains network load balance. Simulation results show that the proposed method outperforms traditional hard load balancing techniques in terms of traffic blocking and packet loss probabilities.

Key words: heterogeneous wireless networks, load balancing, IP flow diversion, access selection, handover

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