NDLI: Throughput-delay-reliability tradeoff in ad hoc networks

Content Provider	IEEE Xplore Digital Library
Author	Vaze, R.
Copyright Year	2010
Description	Author affiliation: Tata Institute of Fundamental Research, School of Technology and Computer Science, Homi Bhabha Road, Mumbai 400005 (Vaze, R.)
Abstract	Delay-reliability (D-R), and throughput-delay-reliability (T-D-R) tradeoffs in an ad hoc network are derived for single hop and multi-hop transmission with automatic repeat request (ARQ) on each hop. The delay constraint is modeled by assuming that each packet is allowed at most D retransmissions end-to-end, and the reliability is defined as the probability that the packet is successfully decoded in at most D retransmissions. The throughput of the ad hoc network is characterized by the transmission capacity, which is defined to be the maximum allowable density of transmitting nodes satisfying a per transmitter receiver rate, and an outage probability constraint, multiplied with the rate of transmission and the success probability. Given an end-to-end retransmission constraint of D, the optimal allocation of the number of retransmissions allowed at each hop is derived that maximizes a lower bound on the transmission capacity. For equidistant hops equally distributing the total retransmission constraint among all the hops is optimal. Optimizing over the number of hops, single hop transmission is shown to be optimal for maximizing a lower bound on the transmission capacity in the sparse network regime.
Starting Page	459
Ending Page	464
File Size	454310
Page Count	6
File Format	PDF
ISBN	9781424475230
e-ISBN	9781424475254
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-05-31
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	INRIA
Subject Keyword	Computer science Transmitters Spread spectrum communication Quality of service Ad hoc networks Computer networks Decoding Automatic repeat request Delay Capacity planning
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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