NDLI: Optimal user pairing in cooperative wireless network coding with constrained power minimization

Content Provider	IEEE Xplore Digital Library
Author	Rasheed, T. Ahmed, M.H. Dobre, O.A. Saad, M.
Copyright Year	2012
Description	Author affiliation: Faculty of Engineering & Applied Science, Memorial University of Newfoundland, St. John's, Canada (Rasheed, T.; Ahmed, M.H.; Dobre, O.A.) \|\| Department of Electrical and Computer Engineering, University of Sharjah, University City, United Arab Emirates (Saad, M.)
Abstract	In this paper, we consider a network-coded cooperative wireless network, where users mutually pair among themselves to realize network coding. We consider a multi-user environment, where users transmit to a common destination, without engaging the idle users into cooperation. Two nodes constituting a pair periodically swap the roles of source and relay to mutually achieve spatial diversity. As such, conditioned on the successful detection of the source's packet, a network coded packet is formed at the relay by a linear combination of its own packet and the source's packet. A single transmission of this network coded packet therefore helps both nodes to achieve diversity gain. We address the problem of finding the optimal user pairing which maximizes the network capacity. Using this optimal capacity pairing, we subsequently solve a constrained optimization problem to minimize the transmission power, such that the network performance constraint in terms of the maximum average outage probability per user is met.
Starting Page	35
Ending Page	38
File Size	188977
Page Count	4
File Format	PDF
ISBN	9781457711534
ISSN	21642974
e-ISBN	9781457711558
DOI	10.1109/RWS.2012.6175388
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-01-15
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Relays Network coding Optimization Wireless networks Minimization Fading Resource management
Content Type	Text
Resource Type	Article

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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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