| 基于模糊逻辑的多终端协同的垂直切换决策算法 |
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| 引用本文： | 任塨晔,赵季红,曲桦.基于模糊逻辑的多终端协同的垂直切换决策算法[J].通信学报,2014,35(9):67-78. |
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| 作者姓名： | 任塨晔 赵季红 曲桦 |
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| 作者单位： | 1. 西安交通大学电子与信息工程学院,陕西西安,710049
2. 西安交通大学电子与信息工程学院,陕西西安710049;西安邮电大学通信与信息工程学院,陕西西安710061 |
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| 基金项目： | 国家高技术研究发展计划（“863”计划）基金资助项目（2014AA01A701，2014AA01A707）；国家自然科学基金资助项目（61372092）；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（2013ZX03002010-003） |
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| 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.
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| 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 |
| 收稿时间： | 8/4/2013 12:00:00 AM |
Vertical handoff decision algorithm for cooperation of
multi-terminal based on fuzzy logic terminal |
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| REN Gong-ye
,
ZHAO Ji-hong
,
QU Hua.Vertical handoff decision algorithm for cooperation of
multi-terminal based on fuzzy logic terminal[J].Journal on Communications,2014,35(9):67-78. |
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| Authors: | REN Gong-ye ZHAO Ji-hong QU Hua |
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| Affiliation: | 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 |
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| 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. |
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| Keywords: | heterogeneous networks cooperation of multi-terminal virtual terminal vertical handoff decision fuzzy logic |
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