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The Vertical Handover Between WLAN and UMTS using Group Decision Making Method

그룹결정방법을 이용한 WLAN과 UMTS간의 수직 핸드오버

  • Kim, Nam-Sun (Dept. of Communication Engineering, Daejin University)
  • 김남선 (대진대학교 통신공학과)
  • Received : 2013.06.04
  • Accepted : 2013.09.06
  • Published : 2013.09.30

Abstract

An important features of next-generation wireless networks will be heterogeneous environment in which a mobile terminal will be able to connect to multiple radio access networks and network selection mechanisms play an important role in ensuring QoS for users in this environment. In this paper, our study is concerned with an extension of the well known AHP to the group decision making methods. The users requested specific QoS divide into a group and the access networks with similar characteristics split into a group. Between each group, the one group is selected and within that group, the best access networks will be assigned according to priority order by network selection algorithm. The experimental results of MATLAB simulation show that the every user in each services can select the same network with decision value as large as 0.9. Consequently, the proposed network selection mechanism is more effective than conventional one in integrated UMTS and WLAN networks.

Keywords

Heterogeneous;MADM;Vertical Handover

References

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