NDLI: Enhancing the throughput-delay performance of IEEE802.11 based networks through direct transmissions

Content Provider	IEEE Xplore Digital Library
Author	Khalaf, R. Rubin, I.
Copyright Year	2004
Description	Author affiliation: Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA (Khalaf, R.; Rubin, I.)
Abstract	It has been advocated so far that operating at the lowest power level that keeps the network connected would achieve optimal throughput performance as the number of nodes in the network grows to infinity; a trend that has yet to be proved in practical ad hoc networks. Adopting this strategy might have a significant effect by deteriorating both throughput and delay performance in many practical situations. The main culprit is the relatively low spatial reuse factor one can attain in typical network topologies, even when operating at the lowest possible power levels. This, in turn, is due to the large carrier-sensing range adopted in most implementations of the protocol. In this paper, we prove that transmitting at the per-link-minimality condition (employing just enough power to reach the final destination directly in one hop) is always optimal from a delay-throughput perspective in most network sizes and traffic patterns of interest. In the cases where the final destination is out of the radio range of the transmitter, it is always optimal for the transmitter to employ the highest possible power level that would allow it to reach the destination in the least number of hops.
Starting Page	2912
Ending Page	2916
File Size	655244
Page Count	5
File Format	PDF
ISBN	0780385217
ISSN	10903038
DOI	10.1109/VETECF.2004.1400593
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-09-26
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Khalaf, R. Rubin, I. Network topology H infinity control Ad hoc networks Radio transmitters Wireless networks Power control Battery management systems Energy management
Content Type	Text
Resource Type	Article

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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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