Energy Efficient Contention Window Adaptation Algorithm for IEEE 802.11 WLAN

Paper


Norsyafizan, Wan Norsyafizan Wan, Khan, Jamil Y. and Brown, Jason. 2015. "Energy Efficient Contention Window Adaptation Algorithm for IEEE 802.11 WLAN." 22nd International Conference on Telecommunications (ICT2015). Sydney, Australia 27 - 29 Apr 2015 United States. https://doi.org/10.1109/ICT.2015.7124657
Paper/Presentation Title

Energy Efficient Contention Window Adaptation Algorithm for IEEE 802.11 WLAN

Presentation TypePaper
AuthorsNorsyafizan, Wan Norsyafizan Wan, Khan, Jamil Y. and Brown, Jason
Journal or Proceedings TitleProceedings of the 22nd International Conference on Telecommunications (ICT2015)
Journal Citationpp. 54-59
Number of Pages6
Year2015
Place of PublicationUnited States
ISBN9781479980789
Digital Object Identifier (DOI)https://doi.org/10.1109/ICT.2015.7124657
Web Address (URL) of Paperhttps://ieeexplore.ieee.org/abstract/document/7124657
Web Address (URL) of Conference Proceedingshttps://ieeexplore.ieee.org/xpl/conhome/7109533/proceeding
Conference/Event22nd International Conference on Telecommunications (ICT2015)
Event Details
22nd International Conference on Telecommunications (ICT2015)
Parent
IEEE International Conference on Telecommunications
Event Date
27 to end of 29 Apr 2015
Event Location
Sydney, Australia
Abstract

This paper introduces a new contention window (CW) adaptation algorithm to reduce the collision level in an IEEE802.11 based network with the main objective of maximizing energy efficiency while maintaining required Quality of Service (QoS) performance. The main concept of the proposed algorithm is to dynamically adjust the contention window size according to the network load condition, which represents the level of congestion in a network. Performance analysis is carried out using an OPNET based simulation model to study the effects of CW adaptation on the energy efficiency and QoS performance. Performance of the proposed algorithm is compared with the legacy Distributed Coordination Function (DCF) and other CW adaptation algorithms such as Fast Collision Resolution (FCR) and CW tuning. The results show that the proposed algorithm outperforms the other techniques in terms of reducing collision level and that directly translates to higher energy efficiency as well as better QoS performance. The proposed protocol can be extended to support multi-class traffic with different priorities.

Keywordscontention window (CW); energy efficiency; backoff; distributed coordination function (DCF)
Contains Sensitive ContentDoes not contain sensitive content
ANZSRC Field of Research 2020400902. Digital electronic devices
Public Notes

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Byline AffiliationsUniversity of Newcastle
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https://research.usq.edu.au/item/z2441/energy-efficient-contention-window-adaptation-algorithm-for-ieee-802-11-wlan

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