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A Two-Phase Handoff Scheme for Mobility Management in Wireless ATM Networks

Salah, Khaled and Drakopoulos, Elias (1998) A Two-Phase Handoff Scheme for Mobility Management in Wireless ATM Networks. Proceedings of the 2nd IFIP/IEEE International Conference on Management of Multimedia Networks and Services, Versailles, France. pp. 205-214.

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Abstract

Mobility management in Wireless ATM networks poses a number of technical issues. An important issue is the ability to manage and reroute on-going connections during handoff as mobile users move among base stations. We propose a two- phase handoff management scheme using permanent virtual paths reserved between adjacent Mobility Enhanced Switches (MES). The virtual paths are used in the first phase to rapidly reroute user connections. In the second phase, a distributed optimization process is initiated to optimally reroute handed-off connections. The paper also describes an adaptive optimization scheme to achieve high reserved bandwidth utilization. We analytically calculate and study the bandwidth requirement for the reserved virtual paths and handoff blocking probability. We also study the impact of processing and signaling load due to the second-phase route optimization. Both ATM CBR and VBR traffic types were considered for mobile users.



Item Type:Article
Uncontrolled Keywords:MOBILITY MANAGEMENT, ATM, WIRELESS NETWORK, HANDOFF PROCEDURE
Date:1998
Subjects:Computer
Divisions:College Of Computer Sciences and Engineering > Information and Computer Science Dept
Creators:Salah, Khaled and Drakopoulos, Elias
Email:salah@kfupm.edu.sa, edrakopoulos@lucent.com
ID Code:791
Deposited By:KHALED HAMED SALAH
Deposited On:27 Mar 2008 12:31
Last Modified:12 Apr 2011 13:06

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