NDLI: The IEEE 802.11 active probing analysis and enhancements

Content Provider	IEEE Xplore Digital Library
Author	Youssef, M. Shahamat, L. Kleene, M. Agrawala, A.
Copyright Year	2005
Description	Author affiliation: Dept. of Comput. Sci. & UMIACS, Maryland Univ., College Park, MD, USA (Youssef, M.; Shahamat, L.; Kleene, M.; Agrawala, A.)
Abstract	The active probing mechanism is a critical function of the IEEE 802.11 protocol. Active probing is used for access points discovery, roaming between different access points, and recently in WLAN-based location determination systems to achieve reliable signal strength measurements. The 802.11 standard leaves it open for manufacturers to implement the active probing mechanism. In this paper, we analyze the performance of the active probing mechanism of the 802.11 protocol. Our analysis shows that the current implementations of the active probing mechanism are inefficient and lead to decreased capacity. We identify two main factors contributing to this negative effect on the capacity. These factors are observed with cards from different manufacturers and lead to increasing the probing cycle time and unnecessary retransmission. We propose different techniques to enhance the efficiency of the active probing mechanism. The proposed techniques require no or minimal changes to the wireless cards' drivers and hence allow incremental deployment.
Starting Page	1539
Ending Page	1544
File Size	3552376
Page Count	6
File Format	PDF
ISBN	0780393058
DOI	10.1109/WIRLES.2005.1549642
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-06-13
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wireless LAN 802.11 protocol Wireless application protocol Access protocols Educational institutions protocol analysis Roaming Wireless MAC protocols: Design and analysis Computer science 802.11 WLANs Wireless networks Manufacturing Performance analysis Probes active probing
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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