NDLI: A framework for integrated discrete-rate and power adaptation and user selection in heterogeneous wireless networks

Content Provider	IEEE Xplore Digital Library
Author	Taki, M. Lahouti, F.
Copyright Year	2011
Description	Author affiliation: Wireless Multimedia Communications Laboratory School of Electrical and Computer Engineering, College of Engineering, University of Tehran, Iran (Taki, M.; Lahouti, F.)
Abstract	This paper presents novel joint link adaptation and user selection (JLAUS) schemes to maximize a weighted sum of the average rates of wireless links sharing a spectrum, while their possibly different minimum required average rates and quality of service constraints are provisioned. The schemes take into account the instantaneous SNR of all links and select a link for transmission and set its rate and power in a jointly optimized manner. The links operate based on adaptive modulation and coding and power control over heterogeneous wireless fading channels. Two JLAUS schemes are presented. The first scheme provides a framework for integrated analysis and design of link adaptation and user selection and relies on a partitioning of the space of link SNRs into regions. In this setting, the second scheme offers a particular JLAUS design, which enjoys a polynomial design complexity. The design is performed before the transmission starts, based on closed form solutions. The proposed schemes can be easily applied to a multiple access or a broadcast network. Numerical results demonstrate how the proposed JLAUS schemes outperform the benchmark schemes, or effectively meet various user requirements.
Starting Page	252
Ending Page	257
File Size	1109870
Page Count	6
File Format	PDF
ISBN	9781457701108
e-ISBN	9781457701092
DOI	10.1109/WiAd.2011.5983264
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-06-20
Publisher Place	United Kingdom
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wireless networks Bit error rate Time frequency analysis Complexity theory Signal to noise ratio Convergence
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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