NDLI: Simple and practical rate adaptation algorithms for wireless networks

Content Provider	IEEE Xplore Digital Library
Author	Kulkarni, P. Quadri, S.
Copyright Year	2009
Description	Author affiliation: Telecommunications Research Laboratory, Toshiba Research Europe Ltd. Bristol-BS1 4ND, U.K. (Kulkarni, P.; Quadri, S.)
Abstract	Wireless devices can exploit the knowledge of channel conditions to their advantage in achieving high throughput and robust communication. Current systems support multiple transmission rates and the ability to select a desirable rate. Higher transmission rates can be chosen when the channel quality is good thereby maximizing the throughput. Lower transmission rates can be selected when the channel quality is poor ensuring reliable message delivery. In order to achieve this, a wireless device needs some intelligence so it can assess the channel quality and adapt its transmission rate accordingly. This paper presents two novel algorithms to achieve throughput maximization and robust communication using intelligent link rate adaptation algorithms in the wireless device. The first of the two algorithms operates entirely at the sender and uses current channel quality information to guide the rate adaptation decision in finding the next transmission rate. The second algorithm relies on sender-receiver coordination in which feedback on current channel conditions at the recipient is provided to the sender via the rate used to transmit an acknowledgement (ACK). These algorithms were implemented in the ns-2 network simulator and their performance was evaluated against the classic Auto Rate Fallback (ARF) algorithm. Results from this study indicate that the proposed algorithms attain up to twice the throughput attained by ARF in certain scenarios. The results also confirm the limitations of ARF highlighted by previous studies.
Starting Page	1
Ending Page	9
File Size	187831
Page Count	9
File Format	PDF
ISBN	9781424444403
DOI	10.1109/WOWMOM.2009.5282462
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-06-15
Publisher Place	Greece
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Fading Costs Wireless networks Feedback Europe Throughput Attenuation Robustness
Content Type	Text
Resource Type	Article

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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
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