RA-PSM: a rate-aware power saving mechanism in multi-rate wireless LANs

Sangheon Pack; Seongman Min; Taewon Song; Wonjung Kim; Nakjung Choi; Hyunhee Park

doi:10.1007/s11276-015-1064-3

RA-PSM: a rate-aware power saving mechanism in multi-rate wireless LANs

Sangheon Pack^*
, Seongman Min
, Taewon Song
, Wonjung Kim
, Nakjung Choi
, Hyunhee Park

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

Improving energy efficiency is one of the most important issues in wireless local area networks (WLANs) and a power saving mechanism (PSM) has been proposed in IEEE 802.11 WLANs. However, the conventional PSMs do not consider multi-rate transmissions and thus the waiting time for retrieving buffered frames from the access point can be unnecessarily long and more energy can be consumed. In this paper, we propose a rate-aware power saving mechanism (RA-PSM) in multi-rate WLANs. In RA-PSM, a station sets its contention window size inversely proportional to the transmission rate and thus a station with higher transmission rate can request the buffered frames at the access point with higher priority. As a result, the overall channel waiting time can be reduced and the energy consumption can be saved accordingly. Analytical and simulation results demonstrate that RA-PSM can reduce the average channel waiting time and the energy consumption by up to 77 and 40.3 %, respectively, compared with the conventional IEEE 802.11 PSM.

Original language	English
Pages (from-to)	1767-1777
Number of pages	11
Journal	Wireless Networks
Volume	22
Issue number	6
DOIs	https://doi.org/10.1007/s11276-015-1064-3
Publication status	Published - 2016 Aug 1

Bibliographical note

Funding Information:
This research was supported in part by the MSIP (Ministry of Science, ICT&Future Planning), Korea, under the ITRC (Information Technology Research Center) support program (IITP-2015-H8501-15-1007) supervised by the IITP (Institute for Information & communications Technology Promotion) and in part by ICT R&D program of MSIP/IITP (2014-044-006-004, Next Generation WLAN System with High Efficient Performance).

Publisher Copyright:
© 2015, Springer Science+Business Media New York.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

ASJC Scopus subject areas

Information Systems
Computer Networks and Communications
Electrical and Electronic Engineering

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10.1007/s11276-015-1064-3

Cite this

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title = "RA-PSM: a rate-aware power saving mechanism in multi-rate wireless LANs",

abstract = "Improving energy efficiency is one of the most important issues in wireless local area networks (WLANs) and a power saving mechanism (PSM) has been proposed in IEEE 802.11 WLANs. However, the conventional PSMs do not consider multi-rate transmissions and thus the waiting time for retrieving buffered frames from the access point can be unnecessarily long and more energy can be consumed. In this paper, we propose a rate-aware power saving mechanism (RA-PSM) in multi-rate WLANs. In RA-PSM, a station sets its contention window size inversely proportional to the transmission rate and thus a station with higher transmission rate can request the buffered frames at the access point with higher priority. As a result, the overall channel waiting time can be reduced and the energy consumption can be saved accordingly. Analytical and simulation results demonstrate that RA-PSM can reduce the average channel waiting time and the energy consumption by up to 77 and 40.3 \%, respectively, compared with the conventional IEEE 802.11 PSM.",

author = "Sangheon Pack and Seongman Min and Taewon Song and Wonjung Kim and Nakjung Choi and Hyunhee Park",

note = "Funding Information: This research was supported in part by the MSIP (Ministry of Science, ICT\&Future Planning), Korea, under the ITRC (Information Technology Research Center) support program (IITP-2015-H8501-15-1007) supervised by the IITP (Institute for Information \& communications Technology Promotion) and in part by ICT R\&D program of MSIP/IITP (2014-044-006-004, Next Generation WLAN System with High Efficient Performance). Publisher Copyright: {\textcopyright} 2015, Springer Science+Business Media New York.",

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AU - Kim, Wonjung

AU - Choi, Nakjung

AU - Park, Hyunhee

N1 - Funding Information: This research was supported in part by the MSIP (Ministry of Science, ICT&Future Planning), Korea, under the ITRC (Information Technology Research Center) support program (IITP-2015-H8501-15-1007) supervised by the IITP (Institute for Information & communications Technology Promotion) and in part by ICT R&D program of MSIP/IITP (2014-044-006-004, Next Generation WLAN System with High Efficient Performance). Publisher Copyright: © 2015, Springer Science+Business Media New York.

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N2 - Improving energy efficiency is one of the most important issues in wireless local area networks (WLANs) and a power saving mechanism (PSM) has been proposed in IEEE 802.11 WLANs. However, the conventional PSMs do not consider multi-rate transmissions and thus the waiting time for retrieving buffered frames from the access point can be unnecessarily long and more energy can be consumed. In this paper, we propose a rate-aware power saving mechanism (RA-PSM) in multi-rate WLANs. In RA-PSM, a station sets its contention window size inversely proportional to the transmission rate and thus a station with higher transmission rate can request the buffered frames at the access point with higher priority. As a result, the overall channel waiting time can be reduced and the energy consumption can be saved accordingly. Analytical and simulation results demonstrate that RA-PSM can reduce the average channel waiting time and the energy consumption by up to 77 and 40.3 %, respectively, compared with the conventional IEEE 802.11 PSM.

AB - Improving energy efficiency is one of the most important issues in wireless local area networks (WLANs) and a power saving mechanism (PSM) has been proposed in IEEE 802.11 WLANs. However, the conventional PSMs do not consider multi-rate transmissions and thus the waiting time for retrieving buffered frames from the access point can be unnecessarily long and more energy can be consumed. In this paper, we propose a rate-aware power saving mechanism (RA-PSM) in multi-rate WLANs. In RA-PSM, a station sets its contention window size inversely proportional to the transmission rate and thus a station with higher transmission rate can request the buffered frames at the access point with higher priority. As a result, the overall channel waiting time can be reduced and the energy consumption can be saved accordingly. Analytical and simulation results demonstrate that RA-PSM can reduce the average channel waiting time and the energy consumption by up to 77 and 40.3 %, respectively, compared with the conventional IEEE 802.11 PSM.

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RA-PSM: a rate-aware power saving mechanism in multi-rate wireless LANs

Abstract

Bibliographical note

UN SDGs

ASJC Scopus subject areas

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