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作者机构:Jiangsu Key Laboratory of Wireless Communications Nanjing University of Posts and Telecommunications Nanjing 210003 China Key Laboratory on Wideband Wireless Communications and Sensor Network Technology Ministry of Education Nanjing University of Posts and Telecommunications Nanjing 210003 China
出 版 物:《The Journal of China Universities of Posts and Telecommunications》 (中国邮电高校学报(英文版))
年 卷 期:2012年第19卷第5期
页 面:92-98,114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] 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] 0812[工学-计算机科学与技术(可授工学、理学学位)]
基 金:supported by the National Natural Science Foundation of China(61171094) the National Science and Technology Major Project(2011ZX03001-006-02,2011ZX03005-004-03)) the Key Project of Jiangsu Provincial Natural Science Foundation (BK2011027)
主 题:heterogeneous wireless networks group decision making compatibility criterion analytic hierarchy process entropy method
摘 要:One of the key issues for radio resources management is network selection strategy in heterogeneous scenarios. In order to provide ubiquitous service, the paper puts forward a network selection algorithm based on multiple attribute decision making (MADM) and group decision making (GDM). Firstly, the proposed algorithm acquires attribute weights' vectors of the subjective and objective decision makers based on MADM, and then the two attribute weights' vectors are synthesized to be a new attribute weights' vector by using GDM. Considering that the results of GDM should be reasonable and convincible, the criterion of consistency is adopted for judging the compatibility of group judgments. More specit]cally, the algorithm takes into account not only objective attributes of networks but also the preference of subscribers and traft]c class Hence it guarantees that the subscribers can not select the networks with poor performance depending on their preference. The simulation results show that the proposed algorithm can effectively reduce the handoff number and provide subscribers with satisfactory quality of service (QoS).