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The effect of handover quality on buffering requirements in WATM

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Original languageEnglish
Title of host publicationIEEE Symposium on Communications & Vehicular Technology SCVT-2000, Leuven, Belgium
Publisher or commissioning bodyInstitute of Electrical and Electronics Engineers (IEEE)
Publication dateOct 2000
Pages88 - 93
Volume1
ISBN (Print)0780366840
DOIs
StatePublished

Conference

ConferenceSymposium on Communications and Vehicular Technology, 2000
CountryBelgium
CityLeuven
Period1/10/00 → …

Abstract

In order to maintain quality of service (QoS) guarantees during a wireless ATM handover, the cell stream must be buffered while a new connection is established. Once handoff is complete, the buffers can be emptied and normal transmission resumes. This prevents cell loss but can introduce cell delay variation (CDV) which is detrimental to real time and delay sensitive services. Additional flow control buffers can overcome this; however, the quality of the handoff will greatly affect the loading on these buffers. In this paper a lossless handover method is analysed using the Opnet simulation tool, varying qualities of handoff are modelled and the buffer loading is measured. Practical data gathered using a 5 GHz variable rate modem is included in the model to provide radio performance characteristics and allow cell retransmission rates and other factors that will affect the handover to be incorporated. The results from the Opnet simulation are presented including cell delay and delay variation, utilisation and loading of buffers and handover efficiency.

Additional information

Rose publication type: Conference contribution Terms of use: Copyright © 2000 IEEE. Reprinted from Proceedings of IEEE Symposium on Communications and Vehicular Technology, 2000. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Bristol's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to pubs-permissions@ieee.org. By choosing to view this document, you agree to all provisions of the copyright laws protecting it.

Research areas

  • asynchronous transfer mode, mobile radio

Event

Symposium on Communications and Vehicular Technology, 2000

Duration1 Oct 2000 → …
CountryBelgium
CityLeuven

Event: Conference

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