Quality of service over wireless ATM links

Jeong Geun Kim, Marwan Krunz

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

11 Scopus citations

Abstract

Several technical issues must be resolved before ATM services can be efRciently extended to the wireless environment. Key issues include incorporating the characteristics of the time-varying wireless channel in the provisioning of the cell-level QoS, and improving the transport performance using error control mechanisms. In this paper, we analyze the cell loss and delay performance over a wireless ATM link. We consider both cases of a single and multiplexed ATM connections. The link capacity fluctuates according to a fluid version of Gilbert-Elliot channel model. Traffic sources are modeled as onoff fluid processes. Our analytical framework incorporates the effects of error control schemes (i.e., ARQ and/orFEC), which are used to improve the transport performance over the wireless link. For the single-stream case, we derive the mean delay and the cell loss rate (CLR) due to buffer overflow at the sender side of the wireless link. We also obtain a closed-form approximation for the corresponding wireless effective bandwidth. In the case of multiplexed streams, we obtain a good approximation for the CLR using the Chernoff-Dominant Eigenvalue (CDE) approach. The expressions for the CLR and effective bandwidth are then used to study the optimal FEC code rate that guarantees the requested QoS while maximizing the utilization of the wireless bandwidth. Numerical results and simulations are used to verify the adequacy of our analysis and to study the impact of error control on the allocation of bandwidth for guaranteed cell loss and delay performance.

Original languageEnglish (US)
Title of host publicationProceedings - IEEE INFOCOM'99
Subtitle of host publicationThe Conference on Computer Communications - 18th Annual Joint Conference of the IEEE Computer and Communications Societies: The Future is Now
Pages1003-1010
Number of pages8
DOIs
StatePublished - Dec 1 1999
Event18th Annual Joint Conference of the IEEE Computer and Communications Societies: The Future is Now, IEEE INFOCOM'99 - New York, NY, United States
Duration: Mar 21 1991Mar 25 1991

Publication series

NameProceedings - IEEE INFOCOM
Volume3
ISSN (Print)0743-166X

Conference

Conference18th Annual Joint Conference of the IEEE Computer and Communications Societies: The Future is Now, IEEE INFOCOM'99
CountryUnited States
CityNew York, NY
Period3/21/913/25/91

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Keywords

  • QoS
  • Wireless ATM networks
  • effective bandwidth
  • fluid analysis

ASJC Scopus subject areas

  • Computer Science(all)
  • Electrical and Electronic Engineering

Cite this

Kim, J. G., & Krunz, M. (1999). Quality of service over wireless ATM links. In Proceedings - IEEE INFOCOM'99: The Conference on Computer Communications - 18th Annual Joint Conference of the IEEE Computer and Communications Societies: The Future is Now (pp. 1003-1010). [751654] (Proceedings - IEEE INFOCOM; Vol. 3). https://doi.org/10.1109/INFCOM.1999.751654