NDLI: Reduction of handoff search phase time in IEEE 802.11 WLAN to fulfill real time services requirements

Content Provider	IEEE Xplore Digital Library
Author	Hamdan, T.T.M. Sigiuk, H.I. Omar, Y.M.
Copyright Year	2009
Description	Author affiliation: Electrical & Electronic Department, Faculty of Engineering, Al-Fateh University, Tripoli, Libya (Hamdan, T.T.M.; Sigiuk, H.I.; Omar, Y.M.)
Abstract	The performance of passive and active scanning is analyzed for wireless LAN, during handoff search phase based on the IEEE 802.11b standard. The performance analysis indicates that the active scanning method is faster and works well if the number of mobile stations is less than 15. Active scanning can reduce the search phase time to 55% compared to that of passive scanning, for 10 mobile stations in a cell. The timer MinChannelTime of active scanning is set to 1 ms and the MaxChannelTime timer is set according to the number of mobile stations allowed in the WLAN cell. We propose a technique in which a WLAN cell is aware of the number of mobile stations in the surrounding WLAN cells and their associated used channels. In this way, the number of scanned channels can be reduced dramatically and a mobile station can switch to passive or active scanning and modify the active scanning MaxChannelTime parameter accordingly. Using this technique the search phase time can be reduced to below 50 ms for a WLAN cell with 10 mobile stations.
Starting Page	346
Ending Page	351
File Size	246852
Page Count	6
File Format	PDF
ISBN	9781424429363
DOI	10.1109/ICTEL.2009.5158671
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-05-25
Publisher Place	Morroco
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wireless LAN IEEE 802.11b Instruction sets Switches WLAN analytical model Phase detection Delay Analytical models Road accidents handoff latency real time traffic performance Traffic control Performance analysis Internet
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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