Computer Engineering and Applications ›› 2010, Vol. 46 ›› Issue (15): 109-111.DOI: 10.3778/j.issn.1002-8331.2010.15.032

• 网络、通信、安全 • Previous Articles     Next Articles

User-based access selection in heterogeneous systems

HE Zhen-hua,PEI Ting-rui,ZENG Wen-li,ZHU Xiao-yu   

  1. College of Information Engineering,Xiangtan University,Xiangtan,Hunan 411105,China
  • Received:2008-11-19 Revised:2009-02-18 Online:2010-05-21 Published:2010-05-21
  • Contact: HE Zhen-hua

面向用户的异构网接入选择算法

何振华,裴廷睿,曾文丽,朱晓瑜   

  1. 湘潭大学 信息工程学院,湖南 湘潭 411105

  • 通讯作者: 何振华

Abstract: In the near future,multitude of wireless communication networks based on a variety of radio access technologies(RATs)and standards will emerge and coexist.As the key technique in wireless resource management,the network select decision becomes one of the focuses in heterogeneous wireless networks.A novel network selection algorithm for user to select the network that will maximize the consumer interest,while taking into account the QoS,charge and stable is proposed.Suppose service providers are competing with each other without any agreement.By analyzing the factors that influence network selection and double judging,a network selection decision model is founded.At last,the validity and accuracy of the algorithm is confirmed by the simulation.

Key words: heterogeneous networks, access selection, analytic hierarchy process

摘要: 无线通信网络的发展趋势之一是将各种不同无线接入技术进行融合。多接入选择作为无线资源管理中的关键技术是目前异构网融合的研究热点之一。从用户的利益出发,充分考虑预接入网络的费用、QoS和稳定性;假定不同的网络运营商之间是彼此竞争的,即没有达成统一的协议,提出了一种结合目标代价函数与层次分析法的动态多接入选择算法。通过对影响因素进行分析和二次判断,建立了网络选择决策模型,仿真结果验证了该算法的正确性与有效性。

关键词: 异构网, 接入选择, 层次分析法

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