Improving Energy Efficiency in Idle Listening of IEEE 802.11 WLANs
Joint Authors
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-06-29
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Telecommunications Engineering
Abstract EN
This paper aims to improve energy efficiency of IEEE 802.11 wireless local area networks (WLANs) by effectively dealing with idle listening (IL), which is required for channel sensing and is unavoidable in a contention-based channel access mechanism.
Firstly, we show that IL is a dominant source of energy drain in WLANs and it cannot be effectively alleviated by the power saving mechanism proposed in the IEEE 802.11 standard.
To solve this problem, we propose an energy-efficient mechanism that combines three schemes in a systematic way: downclocking, frame aggregation, and contention window adjustment.
The downclocking scheme lets a station remain in a semisleep state when overhearing frames destined to neighbor stations, whereby the station consumes the minimal energy without impairing channel access capability.
As well as decreasing the channel access overhead, the frame aggregation scheme prolongs the period of semisleep time.
Moreover, by controlling the size of contention window based on the number of stations, the proposed mechanism decreases unnecessary IL time due to collision and retransmission.
By deriving an analysis model and performing extensive simulations, we confirm that the proposed mechanism significantly improves the energy efficiency and throughput, by up to 2.8 and 1.8 times, respectively, compared to the conventional power saving mechanisms.
American Psychological Association (APA)
Adnan, Muhammad& Park, Eun-Chan. 2016. Improving Energy Efficiency in Idle Listening of IEEE 802.11 WLANs. Mobile Information Systems،Vol. 2016, no. 2016, pp.1-15.
https://search.emarefa.net/detail/BIM-1111568
Modern Language Association (MLA)
Adnan, Muhammad& Park, Eun-Chan. Improving Energy Efficiency in Idle Listening of IEEE 802.11 WLANs. Mobile Information Systems No. 2016 (2016), pp.1-15.
https://search.emarefa.net/detail/BIM-1111568
American Medical Association (AMA)
Adnan, Muhammad& Park, Eun-Chan. Improving Energy Efficiency in Idle Listening of IEEE 802.11 WLANs. Mobile Information Systems. 2016. Vol. 2016, no. 2016, pp.1-15.
https://search.emarefa.net/detail/BIM-1111568
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1111568