A cross-layer link adaptation algorithm for IEEE 802.11 WLAN with multiple nodes

Chiapin Wang, Tsungnan Lin

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

1 Citation (Scopus)

Abstract

IEEE 802.11 Wireless Local Area Network (WLAN) PHYsical Layer (PHY) offers multiple data rates. In multi-rate WLANs, 802.11 Distributed Coordination Function (DCF) presents the phenomenon so called "performance anomaly": when some hosts transmit at lower data rates, throughput of others at high rates will be restricted within the lowest rate, leading to the degradation of overall performance. Therefore, the link adaptation scheme for 802.11 WLAN should consider not only throughput of the observed host but also system throughput in order to optimize the overall performance. In this paper we propose a cross-layer link adaptation algorithm which improves system throughput by regarding the situation of PHY rate degradation more thoughtfully and critically, and meanwhile compensates the throughput of hosts with bad link qualities by applying differentiated channel access parameters. Simulation results demonstrate the effectiveness of the propose algorithm.

Original languageEnglish
Title of host publicationProceedings of the 3rd IEEE Asia-Pacific Services Computing Conference, APSCC 2008
PublisherIEEE Computer Society
Pages1162-1167
Number of pages6
ISBN (Print)9780769534732
DOIs
Publication statusPublished - 2008 Jan 1
Event3rd IEEE Asia-Pacific Services Computing Conference, APSCC 2008 - Yilan, Taiwan
Duration: 2008 Dec 92008 Dec 12

Publication series

NameProceedings of the 3rd IEEE Asia-Pacific Services Computing Conference, APSCC 2008

Other

Other3rd IEEE Asia-Pacific Services Computing Conference, APSCC 2008
CountryTaiwan
CityYilan
Period08/12/908/12/12

ASJC Scopus subject areas

  • Computer Science Applications
  • Software
  • Electrical and Electronic Engineering

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  • Cite this

    Wang, C., & Lin, T. (2008). A cross-layer link adaptation algorithm for IEEE 802.11 WLAN with multiple nodes. In Proceedings of the 3rd IEEE Asia-Pacific Services Computing Conference, APSCC 2008 (pp. 1162-1167). [4780835] (Proceedings of the 3rd IEEE Asia-Pacific Services Computing Conference, APSCC 2008). IEEE Computer Society. https://doi.org/10.1109/APSCC.2008.136