NDLI: Modelling Throughput and Starvation in 802.11 Wireless Networks with Multiple Flows

Content Provider	IEEE Xplore Digital Library
Author	Margolis, A. Vijayakumar, R. Roy, S.
Copyright Year	2007
Description	Author affiliation: Univ. of Washington, Seattle (Margolis, A.; Vijayakumar, R.; Roy, S.)
Abstract	Carrier sense multiple access (CSMA) protocols require stations that wish to transmit to first check the shared medium for ongoing transmissions. However, in wireless networks stations may not be able to sense transmissions from all other stations; hence those at different locations can experience different amounts of contention, resulting in unfairness and possible "starvation" (inability to acquire channel access for long periods). In this paper we model how the 802.11 MAC protocol allocates bandwidth among multiple saturated flows in a linear topology when not all senders are within sensing range. We consider a specific class of topologies consisting of n independent flows, where each sender can sense k neighbors on either side. Our work uncovers global interactions among flows leading to startling sensitivities in node throughput. A new model to predict the long-term throughput of each flow under saturation is presented and our model results validated via OPNET simulations.
Starting Page	5123
Ending Page	5127
File Size	222623
Page Count	5
File Format	PDF
ISBN	9781424410422
DOI	10.1109/GLOCOM.2007.971
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-11-26
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Throughput Wireless networks Predictive models Wireless application protocol Access protocols Media Access Protocol Bandwidth Multiaccess communication Topology Helium
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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