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An adaptive distributed call admission control for QoS-sensitive wireless mobile networks

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2 Author(s)
Y. Iraqi ; Dept. of Comput. Sci., Waterloo Univ., Ont., Canada ; R. Boutaba

This paper introduces an adaptive distributed call admission control framework developed for cellular mobile networks. The main feature of the proposed framework is a more efficient support for mobile multimedia users having dynamic bandwidth requirements. This is achieved by imposing an upper bound on the experienced call dropping probability, regardless of network load changes, while maintaining a high network resource utilization. The call admission control algorithm presented in this paper involves not only the original cell (handling the new admission request) but also a cluster of neighboring cells. The neighboring cells provide significant information about their ability to support the new mobile user in the future. This distributed process allows the original cell to make a more clear-sighted admission decision for the new user. The cell changes the acceptance threshold dynamically to maintain a target call dropping probability. Simulations are provided to show the improvements obtained using our framework

Published in:

Wireless Communications and Networking Confernce, 2000. WCNC. 2000 IEEE  (Volume:1 )

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