A novel AHP and GRA based handover decision mechanism in heterogeneous wireless networks

Authors:
Jianqing Fu;Jiyi Wu;Jianlin Zhang;Lingdi Ping;Zhuo Li
Affiliations:
School of Computer Science and Technology, Zhejiang University, Hangzhou, P.R. China;School of Computer Science and Technology, Zhejiang University, Hangzhou, P.R. China and Key Lab of E-Business and Information Security, Hangzhou Normal University, Hangzhou, P.R. China;Key Lab of E-Business and Information Security, Hangzhou Normal University, Hangzhou, P.R. China;School of Computer Science and Technology, Zhejiang University, Hangzhou, P.R. China;School of Computer Science and Technology, Zhejiang University, Hangzhou, P.R. China
Venue:
ICICA'10 Proceedings of the First international conference on Information computing and applications
Year:
2010

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Abstract

The next-generation of wireless systems represents a heterogeneous environment with different access networks technologies that differ in bandwidth, latency or cost. The most challenging problem is the seamless vertical mobility across heterogeneous networks. In order to improve the accuracy and efficiency of the vertical handover for such heterogeneous networks, this paper proposes a novel handover network decision mechanism with QOS provision based on analytic hierarchy process (AHP) and grey relational analysis (GRA) methods. We have successfully simulated and tested our approach using the OPNET simulation tool. The simulation results revealed that the proposed algorithm can not only work efficiently for 3G (TD-SCDMA), WLAN (IEEE 802.11), 4G system but also reduce the complexity of implementation significantly.