吉林大学学报(工学版) ›› 2013, Vol. 43 ›› Issue (03): 788-793.doi: 10.7964/jdxbgxb201303038

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基于网格的异构无线网络负载均衡算法

石文孝, 张阁, 王继红, 赵颖   

  1. 吉林大学 通信工程学院,长春 130012
  • 收稿日期:2012-04-09 出版日期:2013-05-01 发布日期:2013-05-01
  • 作者简介:石文孝(1960-),男,教授,博士生导师.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:

    国家自然科学基金项目(60972028).

Grid based load balancing algorithm over heterogeneous wireless networks

SHI Wen-xiao, ZHANG Ge, WANG Ji-hong, ZHAO Ying   

  1. College of Communication Engineering, Jilin University, Changchun 130012, China
  • Received:2012-04-09 Online:2013-05-01 Published:2013-05-01

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摘要： 针对目前软负载均衡算法中无线资源统计不具有普适性,未考虑用户业务需求与异构资源单元差异性匹配的问题,根据网格计算的思想,在异构无线网络中提出了基于网格的负载均衡算法.该算法首先将无线资源映射成不同的三维资源单元,每个三维资源单元相当于一个网格.然后将业务分成不同的子业务流(数据包),统一分给不同的网格,实现业务的分布式分流,在保证用户QoS的情况下,实现网络的负载均衡.仿真结果表明:基于网格的负载均衡算法能够较好地均衡异构网络间的负载,降低负载偏离度,提高系统吞吐率.

关键词: 通信技术, 异构无线网络, 网格, 负载均衡, 三维资源单元, IP流分流

Abstract: The current soft load balancing algorithms in heterogeneous wireless networks do not have a universal wireless resource statistics, have not consider the matching difference between customers' business needs and the resource units. According to grid computing idea, a load balancing algorithm based on grid over heterogeneous wireless networks was put forward. The algorithm firstly maps the radio resources into different three-dimensional resources, which are equivalent to three-dimensional grids. The flow is divided into different subflows (i.e.data packets), and then distributed to different grids. In the condition of guaranteed QoS, networks load balancing can be achieved. Simulation results show that grid-based load balancing algorithm can achieve good load balancing among heterogeneous networks, reduce the load deviation, and improve system throughput.

Key words: communication technology, heterogeneous wireless networks, grid, load balancing, three-dimensional resource units, IP flow diversion

中图分类号: 

  • TN929.53
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