通信学报 ›› 2014, Vol. 35 ›› Issue (9): 67-78.doi: 10.3969/j.issn.1000-436x.2014.09.007

• 论文Ⅱ • 上一篇    下一篇

基于模糊逻辑的多终端协同的垂直切换决策算法

任塨晔1,赵季红1,2,曲桦1   

  1. 1 西安交通大学 电子与信息工程学院,陕西 西安 710049
    2 西安邮电大学 通信与信息工程学院,陕西 西安 710061
  • 出版日期:2014-09-25 发布日期:2017-06-14
  • 基金资助:
    国家高技术研究发展计划(“863”计划)基金资助项目;国家高技术研究发展计划(“863”计划)基金资助项目;国家自然科学基金资助项目;新一代宽带无线移动通信网国家科技重大专项基金资助项目

Vertical handoff decision algorithm for cooperation of multi-terminal based on fuzzy logic terminal

Gong-ye REN1,Ji-hong ZHAO1,2,Hua QU1   

  1. 1 School of Electronic & Information Engineering,Xi'an Jiaotong University,Xi'an 710049,China
    2 School of Telecommunication & Information Engineering,Xi'an University of Posts & Telecommunications,Xi'an 710061,China
  • Online:2014-09-25 Published:2017-06-14
  • Supported by:
    The National High Technology Research and Development Program of China(863 Program);The National High Technology Research and Development Program of China(863 Program);The National Natural Science Foundation of China;National Science and Technology Major Project:A New Generation of Broadband Wireless Mobile Communication Networks

摘要:

针对异构网下多终端协同的垂直切换决策问题,提出一种基于模糊逻辑和层次分析法的垂直切换决策算法,它分为2部分:切换时机的判断和虚拟终端的构建。首先采用模糊逻辑判断切换的时机,然后采用层次分析算法与简单加权求和结合的方法选择虚拟终端的最优构成方式。仿真结果表明,算法能够降低切换次数和不必要切换率,并且能够充分体现应用需求和用户偏好。

关键词: 异构网, 多终端协同, 虚拟终端, 垂直切换决策, 模糊逻辑

Abstract:

In order to solve the problem of vertical handoff decision for cooperation of multi-terminal,a fuzzy logic and AHP (analytic hierarchy process) based vertical handoff decision algorithm was proposed,which included the decision of the moment of triggering handoff and the construction of virtual terminal.Firstly,fuzzy logic was applied to decide the moment of triggering handoff.Secondly,a method combining AHP and SAW (simple additive weight) was used to choose the best composition manner of virtual terminal.Simulation results show that the proposed algorithm reduces the number of handoffs and the ratio of unnecessary handoffs.Additionally,it reflects application requirements and user preferences clearly.

Key words: heterogeneous networks, cooperation of multi-terminal, virtual terminal, vertical handoff decision, fuzzy logic

No Suggested Reading articles found!