A cross-layer approach to reduce channel access delay jitter in IEEE 802.11 WLANs

Sangheon Pack, Kihun Kim, Wonjung Kim, Taewon Song, Seongman Min

Research output: Contribution to journalArticle

6 Citations (Scopus)

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. 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) is also provided. Extensive simulation results demonstrate that the CRB scheme can reduce the channel access delay jitter by 54 %.

Original languageEnglish
Pages (from-to)1379-1390
Number of pages12
JournalWireless Personal Communications
Volume69
Issue number4
DOIs
Publication statusPublished - 2013 Apr 1

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Jitter
Wireless local area networks (WLAN)

Keywords

  • Binary exponential backoff
  • Consistent hashing
  • Consistent random backoff
  • Voice over WLANs

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Science Applications

Cite this

A cross-layer approach to reduce channel access delay jitter in IEEE 802.11 WLANs. / Pack, Sangheon; Kim, Kihun; Kim, Wonjung; Song, Taewon; Min, Seongman.

In: Wireless Personal Communications, Vol. 69, No. 4, 01.04.2013, p. 1379-1390.

Research output: Contribution to journalArticle

Pack, Sangheon ; Kim, Kihun ; Kim, Wonjung ; Song, Taewon ; Min, Seongman. / A cross-layer approach to reduce channel access delay jitter in IEEE 802.11 WLANs. In: Wireless Personal Communications. 2013 ; Vol. 69, No. 4. pp. 1379-1390.
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