A two-phase inter-switch handoff scheme for wireless ATM networks

Khaled Salah, Elias Drakopoulos

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

12 Scopus citations

Abstract

Supporting mobility in wireless ATM networks poses a number of technical issues. An important issue is the ability to reroute on-going virtual connections during handoff as mobile users move among base stations. We propose a two-phase inter-switch handoff 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 handoff connections. The proposed handoff scheme yields small handoff latency and optimal routes while decreasing system cost and complexity. The paper also describes wireless control and ATM signaling capabilities required for supporting this scheme. Specific ATM UNI/NNI protocol extensions are presented. Using analysis, we calculate and study the bandwidth requirement for the reserved virtual paths. We also study the second-phase optimization process overhead as well as the effect of other system design parameters.

Original languageBritish English
Title of host publicationProceedings - 7th International Conference on Computer Communications and Networks, ICCCN 1998
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages708-713
Number of pages6
ISBN (Electronic)0818690143, 9780818690143
DOIs
StatePublished - 1998
Event7th International Conference on Computer Communications and Networks, ICCCN 1998 - Lafayette, United States
Duration: 15 Oct 199815 Oct 1998

Publication series

NameProceedings - 7th International Conference on Computer Communications and Networks, ICCCN 1998
Volume1998-October

Conference

Conference7th International Conference on Computer Communications and Networks, ICCCN 1998
Country/TerritoryUnited States
CityLafayette
Period15/10/9815/10/98

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