Weight allocation in distributed admission control for wireless networks

Authors:
Youssef Iraqi;Raouf Boutaba
Affiliations:
School of Computer Science, University of Waterloo, 200 University Avenue West, Waterloo, Ont., Canada N2L 3G1;School of Computer Science, University of Waterloo, 200 University Avenue West, Waterloo, Ont., Canada N2L 3G1
Venue:
Computer Communications
Year:
2005

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Abstract

In this paper, we introduce a weight allocation strategy used to combine the received information from a set of base stations involved in a distributed admission control process. A method to compute the weights in a one and two-dimensional networks is proposed. We also propose a Distributed Call Admission Control (DCAC) framework designed for wireless mobile multimedia networks. We evaluate the performance of the DCAC scheme in terms of call-dropping probability, call blocking probability and average bandwidth utilization. We further introduce a combined performance metric to facilitate performance comparison between CAC schemes. Simulations demonstrate that the weight allocation strategy improves the performance. We also investigate the impact of the number of involved cells in the admission control process on the overall performance.