Impacts of channel variability on link-level throughput in wireless networks

Can Emre Koksal, Kyle Jamieson, Emre Telatar, Patrick Thiran

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

12 Scopus citations

Abstract

We study analytically and experimentally the throughput of the packetized time-varying discrete erasure channel with feedback, which closely captures the behavior of many practical physical layers. We observe that the channel variability at different time scales affects the link-level throughput positively or negatively depending on its time scale. We show that the increased variability in the channel at a time scale smaller than a single packet increases the link-level throughput, whereas the variability at a time scale longer than a single packet reduces it We express the throughput as a function of the number of transmissions per packet and evaluate it as in terms of the cumulants of the samples of the stochastic processes, which model the channel. We also illustrate our results experimentally using mote radios.

Original languageEnglish (US)
Title of host publicationSIGMETRICS 2006/Performance 2006 - Joint International Conference on Measurement and Modeling of Computer Systems, Proceedings
Pages51-62
Number of pages12
Edition1
DOIs
StatePublished - Jun 1 2006
Externally publishedYes
EventSIGMETRICS 2006/Performance 2006 - Joint International Conference on Measurement and Modeling of Computer Systems - Saint Malo, France
Duration: Jun 26 2006Jun 30 2006

Publication series

NamePerformance Evaluation Review
Number1
Volume34
ISSN (Print)0163-5999
ISSN (Electronic)0163-5999

Other

OtherSIGMETRICS 2006/Performance 2006 - Joint International Conference on Measurement and Modeling of Computer Systems
CountryFrance
CitySaint Malo
Period6/26/066/30/06

All Science Journal Classification (ASJC) codes

  • Software
  • Hardware and Architecture
  • Computer Networks and Communications

Keywords

  • Channel modelling
  • Channel variability
  • Link estimation

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  • Cite this

    Koksal, C. E., Jamieson, K., Telatar, E., & Thiran, P. (2006). Impacts of channel variability on link-level throughput in wireless networks. In SIGMETRICS 2006/Performance 2006 - Joint International Conference on Measurement and Modeling of Computer Systems, Proceedings (1 ed., pp. 51-62). (Performance Evaluation Review; Vol. 34, No. 1). https://doi.org/10.1145/1140103.1140285