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http://dx.doi.org/10.3745/KIPSTC.2010.17C.3.271

A study of Vertical Handover between LTE and Wireless LAN Systems using Adaptive Fuzzy Logic Control and Policy based Multiple Criteria Decision Making Method  

Lee, In-Hwan (한양대학교 전자컴퓨터통신공학과, 한국전자통신연구원)
Kim, Tae-Sub (고려대학교 컴퓨터정보학과)
Cho, Sung-Ho (한양대학교 전자컴퓨터통신공학과)
Publication Information
The KIPS Transactions:PartC / v.17C, no.3, 2010 , pp. 271-280 More about this Journal
Abstract
For the next generation mobile communication system, diverse wireless network techniques such as beyond 3G LTE, WiMAX/WiBro, and next generation WLAN etc. are proceeding to the form integrated into the All-IP core network. According to this development, Beyond 3G integrated into heterogeneous wireless access technologies must support the vertical handover and network to be used of several radio networks. However, unified management of each network is demanded since it is individually serviced. Therefore, in order to solve this problem this study is introducing the theory of Common Radio Resource Management (CRRM) based on Generic Link Layer (GLL). This study designs the structure and functions to support the vertical handover and propose the vertical handover algorithm of which policy-based and MCDM are composed between LTE and WLAN systems using GLL. Finally, simulation results are presented to show the improved performance over the data throughput, handover success rate, the system service cost and handover attempt number.
Keywords
Vertical Handover; Fuzzy Logic Control; LTE(Long-Term Evolution); WLAN(Wireless Local Area Network);
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