NDLI: Channel sharing of competing flows in ad hoc networks

Content Provider	IEEE Xplore Digital Library
Author	Yu Wang Garcia-Luna-Aceves, J.J.
Copyright Year	2003
Description	Author affiliation: Dept. of Comput. Eng., California Univ., Santa Cruz, CA, USA (Yu Wang; Garcia-Luna-Aceves, J.J.)
Abstract	This paper studies the fairness with which competing flows share the channel in ad hoc networks using collision avoidance protocols. It is shown that the required multihop coordination makes the backoff-based distributed fair queueing schemes less effective. Using extensive simulations of two competing flows with different underlying network configuration, it is shown that the commonly used flow contention graph is insufficient to model the contention among nodes and that various degrees of unfairness can take place. The fairness problem is more severe in TCP-based flows due to the required acknowledgment traffic, and TCP throughput is also negatively affected. A measurement based fair scheme is analyzed in which nodes estimate their fair share of the channel from overheard traffic and adjust their backoff window accordingly (voluntarily); it is shown that such a scheme achieves much better fairness but sacrifices too much throughput. These results indicate that more explicit information exchange among contending nodes is mandatory to solve the fairness problem conclusively while maintaining reasonable throughput.
Sponsorship	IEEE Comput. Soc. Tech. Committee on Simulation IEEE Commun. Soc
Starting Page	189
Ending Page	196
File Size	439828
Page Count	8
File Format	PDF
ISBN	076951961X
ISSN	15301346
DOI	10.1109/ISCC.2003.1214121
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-07-03
Publisher Place	Turkey
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Intelligent networks Ad hoc networks Throughput Media Access Protocol Access protocols Wireless application protocol Routing protocols Spread spectrum communication Collision avoidance Traffic control
Content Type	Text
Resource Type	Article
Subject	Signal Processing Mathematics Computer Networks and Communications Computer Science Applications Software

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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
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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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