文章基本信息

标题：Vertical Handoff Algorithm Based on Type-2 Fuzzy Logic in Heterogeneous Networks
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作者：Ma, Bin ; Liao, Xiaofeng ; Xie, Xianzhong 等
期刊名称：Journal of Software
印刷版ISSN：1796-217X
出版年度：2013
卷号：8
期号：11
页码：2936-2942
DOI：10.4304/jsw.8.11.2936-2942
语种：English
出版社：Academy Publisher
摘要：Currently, to ensure seamless roam across heterogeneous wireless technologies, efficient vertical handoff algorithms are required to enhance QoS and offer reliable pervasive computing environment. This study reviews traditional and classical artificial intelligent approaches adopted for vertical handoff across heterogeneous networks. A type-2 fuzzy multi-parameter based vertical handoff decision algorithm is proposed. The proposed algorithm considers five parameters of network and user, and applies a multi-mode smart terminal based speed adaptive vertical handoff policy. The speed adaptive policy overcomes the update drawbacks of the fixed, single network discovery methods by using RSS in the network discovery phase. Simulation results show that the proposed algorithm can effectively improve the network update speed, lower network blocking probability, and assure the effectiveness and fairness of handoff compared with vertical handoff algorithm based on traditional fuzzy logic.
关键词：heterogeneous network;vertical handoff;speed adaptive;type-2 Fuzzy logic