Design and Performance Evaluation of a QoS-Based Dynamic Channel Allocation Protocol for Wireless and Mobile Networks

Authors:
Azzedine Boukerche;Tingxue Huang;Kaouther Abrougui
Affiliations:
SITE university of Ottawa;SITE university of Ottawa;SITE university of Ottawa
Venue:
MASCOTS '05 Proceedings of the 13th IEEE International Symposium on Modeling, Analysis, and Simulation of Computer and Telecommunication Systems
Year:
2005

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Abstract

In recent years, we have witnessed a growing interest in the study of channel allocation and handoff strategies for wireless networks to ensure continuous services that guarantee QoS to mobile users. To the best of our knowledge, most of the proposed channel allocation schemes do not take the QoS provisioning into account. In this paper, we propose a distributed algorithm for dynamic channel allocation with an efficient adaptive channel reservation schema providing continuous QoS support. To acquire the low dropping rate, a proper number of channels in the congested cells is reserved for the handoff calls. This number of reserved channels is related to the wireless data traffic network. Our presented channel allocation protocol is based upon the mutual exclusion paradigm where all the channels are grouped into three groups and any cell in a cluster can not hold a channel group as long as another cell in the same cluster is holding the same group. We present our QoS-Based dynamic channel allocation protocol, and its performance evaluation, and discuss our experimental results we have obtained using realistic scenarios.