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The QoE-oriented Heterogeneous Network Selection Based on Fuzzy AHP Methodology

Authors:
Dong-ming Shen

Keywords: QoE; heterogeneous; network selection; fuzzy AHP; consistency

Abstract:
The next generation of wireless communication will be characterized by heterogeneity. One of the challenges arisen is access selection among various radio access technologies. Meanwhile, the quality of experience (QoE) of user is becoming one of the most concerned topics. Analytic Hierarchy Process (AHP) has been popularly used in network selection, while this method is usually imprecise because consistency index in AHP does not accurately indicate users’ perception. In order to deal with this problem as well as optimize the system performance, an effective fuzzy Analytic Hierarchy Process scheme for network selection is proposed in this paper, which takes the multiple criterions of quality of experience (QoE) into consideration. By introducing the fuzzy consistency, the performance of the proposed scheme is consistent with user preferences and experiences. The fuzzy AHP derives relative weights from consistent fuzzy comparison matrices, which eliminates both additional consistency test and modification for the comparison matrix. Simulation results are analyzed in aspects of session quality, availability and instantaneity, and it is indicated that the proposed scheme outperforms the traditional AHP method and load balancing oriented method.

Pages: 275 to 280

Copyright: Copyright (c) IARIA, 2010

Publication date: October 25, 2010

Published in: conference

ISSN: 2308-4278

ISBN: 978-1-61208-100-7

Location: Florence, Italy

Dates: from October 25, 2010 to October 30, 2010