NDLI: Efficient combination of hybrid ARQ with Adaptive Modulation and Coding and Power Control operating in tracking mode

Content Provider	IEEE Xplore Digital Library
Author	Selmi, A. Siala, M. Boujemaa, H.
Copyright Year	2013
Description	Author affiliation: Higher Sch. of Commun. of Tunis, Univ. of Carthage, Tunis, Tunisia (Selmi, A.; Siala, M.; Boujemaa, H.)
Abstract	In this paper, we develop an energy efficient cross-layer design which optimally combines Adaptive Modulation (AMC) and Coding and Power Control (PC), at the physical layer, with type-I Hybrid Automatic Repeat reQuest (HARQ-I) protocol, at the data link layer. The objective is to maximize the average throughput efficiency under a prescribed average transmit power constraint. We have shown in [7] that the optimum transmission strategy is a function of an unknown parameter, referred to λ, which depends on both the average transmit power and the time-varying channel statistics. Since the channel statistics are a priori unknown at the transmitter, we here recourse to an adaptive algorithm, operating in tracking mode, to estimate and track this parameter. In contrast with our previous work, which relied on a block-fading model, we adopt a time-correlated fading channel model based on the Jakes model. We show that the obtained Monte-Carlo simulation results are in perfect agreement with the numerical results based on a perfect knowledge of λ. The obtained results show a significant performance improvement, with respect to a conventional cross-layer design using exclusively AMC at the physical layer and HARQ-I at the data link layer. More precisely, simulation results show that more than 5 dB gain in average transmit power is achieved for low and high average data rates, and no less than 2 dB for medium average data rates.
Starting Page	1507
Ending Page	1512
File Size	347822
Page Count	6
File Format	PDF
ISBN	9781467362351
ISSN	21669570
DOI	10.1109/PIMRC.2013.6666380
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-09-08
Publisher Place	UK
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Throughput Signal to noise ratio Modulation Automatic repeat request Protocols Physical layer Transmitters
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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