Consistent random backoff to reduce channel access delay jitter in IEEE 802.11 WLANs

Sangheon Pack, Kihun Kim, Wonjung Kim, Taewon Song

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

Abstract

In this paper, we propose a consistent random backoff (CRB) scheme to reduce the channel access delay jitter in voice over wireless local area networks (VoWLANs). In the CRB scheme, a contention window (CW) size at each backoff stage is determined by hashing the session identifier and the talk spurt index. Therefore, all packets in the same talk spurt of a session have the same CW sizes if they are transmitted at the same backoff stage. Since a modulo-division operation with the identical maximum CW value is applied, fairness with the legacy backoff scheme (i.e., binary exponential backoff (BEB)) is also provided. Extensive simulation results demonstrate that the CRB scheme can reduce the channel access delay jitter by 54%.

Original languageEnglish
Title of host publication2011 20th International Conference on Computer Communications and Networks, ICCCN 2011 - Proceedings
DOIs
Publication statusPublished - 2011 Sep 26
Event2011 20th International Conference on Computer Communications and Networks, ICCCN 2011 - Maui, HI, United States
Duration: 2011 Jul 312011 Aug 4

Publication series

NameProceedings - International Conference on Computer Communications and Networks, ICCCN
ISSN (Print)1095-2055

Other

Other2011 20th International Conference on Computer Communications and Networks, ICCCN 2011
CountryUnited States
CityMaui, HI
Period11/7/3111/8/4

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Keywords

  • Voice over WLANs
  • binary exponential backoff
  • consistent hashing
  • consistent random backoff

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Hardware and Architecture
  • Software

Cite this

Pack, S., Kim, K., Kim, W., & Song, T. (2011). Consistent random backoff to reduce channel access delay jitter in IEEE 802.11 WLANs. In 2011 20th International Conference on Computer Communications and Networks, ICCCN 2011 - Proceedings [6006051] (Proceedings - International Conference on Computer Communications and Networks, ICCCN). https://doi.org/10.1109/ICCCN.2011.6006051