Dynamic Target Wireless Network Selection Technique Using Fuzzy Linguistic Variables

作     者：Faisal Kaleem Abolfazl Mehbodniya Arif Islam Kang K.Yen Fumiyuki Adachi 

作者机构：Florida International University Tohoku University 

出 版 物：《China Communications》 (中国通信（英文版）)

年 卷 期：2013年第10卷第1期

页      面：1-16页

核心收录：

学科分类：080904[工学-电磁场与微波技术] 0810[工学-信息与通信工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 081402[工学-结构工程] 080402[工学-测试计量技术及仪器] 0804[工学-仪器科学与技术] 081001[工学-通信与信息系统] 0814[工学-土木工程] 

主　　题：network access selection VHO heterogeneous networks WLAN WMAN WWAN Techniques for Order Preference bySimilarity to Ideal Solution 

摘      要：Even though various wireless Net- work Access Technologies （NATs） with dif- ferent specifications and applications have been developed in the recent years, no single wireless technology alone can satisfy the any- time, anywhere, and any service wire- less-access needs of mobile users. A real seamless wireless mobile environment is only realized by considering vertical and horizontal handoffs together. One of the major design issues in heterogeneous wireless networks is the support of Vertical Handoff （VHO）. VHO occurs when a multi-interface enabled mobile terminal changes its Point of Attachment （PoA） from one type of wireless access technology to another, while maintaining an active session. In this paper we present a novel multi-criteria VHO algorithm, which chooses the target NAT based on several factors such as user preferences, system parameters, and traf- tic-types with varying Quality of Service （QoS） requirements. Two modules i.e., VHO Neces- sity Estimation （VHONE） module and target NAT selection module, are designed. Both modules utilize several ＂weighted＂ users＇ and system＇s parameters. To improve the robust- ness of the proposed algorithm, the weighting system is designed based on the concept of fuzzy linguistic variables.