通信学报 ›› 2015, Vol. 36 ›› Issue (8): 104-109.doi: 10.11959/j.issn.1000-436x.2015231

• 学术论文 • 上一篇    下一篇

最小最大剩余服务时间的异构网络选择算法

杜白,李红艳,龙彦   

  1. 西安电子科技大学 综合业务网国家重点实验室,陕西 西安 710071
  • 出版日期:2015-08-25 发布日期:2015-08-25
  • 基金资助:
    国家自然科学基金资助项目;国家自然科学基金资助项目;国家科技重大专项基金资助项目;国家科技重大专项基金资助项目;国家科技重大专项基金资助项目;国家科技重大专项基金资助项目;陕西省13115科技创新工程基金资助项目;国家重点基础研究发展计划(“973”计划)基金资助项目;国家重点实验室基金资助项目;国家重点实验室基金资助项目;长江学者和创新团队发展计划基金资助项目

Network selection algorithm in heterogeneous wireless networks to minimize the maximum residual service time

Bai DU,Hong-yan LI,Yan LONG   

  1. State Key Laboratory of Integrated Service Networks,Xidian University,Xi’an 710071,China
  • Online:2015-08-25 Published:2015-08-25
  • Supported by:
    The National Natural Science Foundation of China;The National Natural Science Foundation of China;The National Important Science Technology Specific Project;The National Important Science Technology Specific Project;The National Important Science Technology Specific Project;The National Important Science Technology Specific Project;The 13115 Science and Technology Immolation Project of Shiaanxi Province;The National Basic Research Program of China(973 Program);The State Key Laboratory Foundation;The State Key Laboratory Foundation;The Program for Changjiang Scholars and Innovative Research Team in University

摘要:

针对异构网络环境中的接入网选择问题,使用李雅普诺夫优化理论对网络进行建模,并提出了使不同接入网络的剩余服务时间差异最小的选择算法。该算法在保证网络稳定的基础上,在长时间尺度内降低了网络的阻塞率。仿真表明,该算法可以提高网络的利用率,降低用户被拒绝的概率。

关键词: 异构网络, 网络选择, 剩余服务时间, 网络稳定性, 李雅普诺夫

Abstract:

Due to the problem of how to select the most suitable access network for users at any time anywhere in heterogeneous wireless networks(HWN),a distributed algorithm to minimize the difference of residual service time between different access networks was proposed.The algorithm use the Lyapunov optimization to model the network and guarantee the stability of the network.Simulation results show that the proposed algorithm can decrease the rejection ratio and achieve a shorter queue length in access networks.

Key words: heterogeneous wireless networks, network selection, residual service time, stability of network, Lyapunov

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