Dynamic ATIM Power Saving Mechanism(DAPSM) in 802.11 Ad-Hoc Networks


The KIPS Transactions:PartC, Vol. 14, No. 6, pp. 475-480, Oct. 2007
10.3745/KIPSTC.2007.14.6.475,   PDF Download:

Abstract

Recently, wireless networking devices that depend on the limited Battery and power-saving of wireless hosts became important issue. Batteries can provide a finite amount of energy, therefore, to increase battery lifetime, it is important to design techniques to reduce energy consumption by wireless hosts. This paper improved power saving mechanism in Distributed Coordination Function(DCF) of IEEE 802.11. In the IEEE 802.11 power saving mechanism specified for DCF, time is divided into so-called beacon intervals. At the start of each beacon interval, each node in the power saving mode periodically wakes up during duration called the ATIM Window. The nodes are required to be synchronized to ensure that all nodes wake up at the same time. During the ATIM window, the nodes exchange control packets to determine whether they need to stay awake for the rest of the beacon interval. The size of the ATIM window has considerably affected power-saving. This paper can provide more power-saving than IEEE 802.11 power saving mode because ATIM window size is efficiently increased or decreased.


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Cite this article
[IEEE Style]
J. H. Park, J. S. Lee, S. C. Kim, "Dynamic ATIM Power Saving Mechanism(DAPSM) in 802.11 Ad-Hoc Networks," The KIPS Transactions:PartC, vol. 14, no. 6, pp. 475-480, 2007. DOI: 10.3745/KIPSTC.2007.14.6.475.

[ACM Style]
Jae Hyun Park, Jang Su Lee, and Sung Chun Kim. 2007. Dynamic ATIM Power Saving Mechanism(DAPSM) in 802.11 Ad-Hoc Networks. The KIPS Transactions:PartC, 14, 6, (2007), 475-480. DOI: 10.3745/KIPSTC.2007.14.6.475.