Browse > Article
http://dx.doi.org/10.3745/KIPSTC.2007.14-C.6.475

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

Park, Jae-Hyun (LG전자)
Lee, Jang-Su (서강대학교 공과대학 컴퓨터학과)
Kim, Sung-Chun (서강대학교 공과대학 컴퓨터학과)
Publication Information
The KIPS Transactions:PartC / v.14C, no.6, 2007 , pp. 475-480 More about this Journal
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 saying 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.
Keywords
Ad-hoc; ATIM window; Beacon interval; Power save;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Juan Carlos Cano and Pietro Manzoni, 'Evaluating the energy-consumption reduction in a MANET by dynamically switching-off network interfaces,' in Proc. of the 6th IEEE Symposium on Computers and Communications, Jul 2001, pp. 186-191   DOI
2 Suresh Singh, Mike Woo, and C. S. Raghavendra, 'Power-aware routing in mobile ad hoc networks,' in MOBICOM '98, Oct 1998. pp. 181-190   DOI
3 Benjie Chen, Kyle Jamieson, Hari Balakrishnam, and Robert Morris, 'Span: An energy-efficient coordination algorithm for topology maintenance in ad hoc wireless netwoks,' in MOBICOM 2001, Jul 2001. pp. 85-96
4 Eun-Sun Jung and Nitin H. Vaidya, 'An Efficient MAC Protocol for Wireless LANs', in MOBICOM Oct 2002, http://citeseer.nj.nec.com/jung01energy.html
5 Mike Loukides, '802.11 Wireless Networks The Definitive Guide', O'REILLY, 2002
6 IEEE 802.11 Working Group, 'Wireless LAN Medium Access Control(MAC) and Physical Layer(PHY) specigications,' 1997. http://grouper.ieee.org/groups/802/11 /Documents/DocumentArchives/1992_docs/1192140.DOC