Enhancing the modelling of vertical handover in integrated cellular/WLAN environments

Kirsal, Yonal and Ever, Enver and Mapp, Glenford E. and Gemikonakli, Orhan (2013) Enhancing the modelling of vertical handover in integrated cellular/WLAN environments. In: The 27th IEEE International Conference on Advanced Information Networking and Applications (AINA-2013), 25-28 March 2013, Barcelona, Spain.

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Abstract

This paper presents a new analytical model to enhance the modelling of vertical handover for integrated cellular/ WLAN systems. The WLAN system considered is within the coverage area of cellular network, hence users can have a downward vertical handover to the WLAN and/or an upward vertical handover to the cellular network. Recent work on the modelling of these systems using a two-stage model with feedback face with some complications in terms of handling certain streams. The possibility of having continuous streams which keep on switching between WLAN and cellular systems, may reduce the practicality of the models. The new analytical model presented in this paper provides restriction on certain flows, to make sure that the handover calls from WLAN to cellular system are not allowed back to the WLAN. Previously proposed analytical models, which do not nullify these streams may not reflect real systems and the results obtained may not be practically applicable especially for such a configuration of cellular/WLAN interaction. A new model is presented with an extra random variable in order to provide that Markovian property is not violated. Results are presented to show that the new model is a significant improvement but more work is needed to analyse more complex scenarios.

Item Type: Conference or Workshop Item (Paper)
Research Areas: A. > School of Science and Technology > Computer Science > SensoLab group
A. > School of Science and Technology > Computer and Communications Engineering
Item ID: 9874
Useful Links:
Depositing User: Enver Ever
Date Deposited: 30 Jan 2013 08:38
Last Modified: 13 Oct 2016 14:25
URI: http://eprints.mdx.ac.uk/id/eprint/9874

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