NDLI: QoS-Driven Power and Rate Adaptation for Multicarrier Communications Over Mobile Wireless Networks

Content Provider	IEEE Xplore Digital Library
Author	Tang, J. Zhang, X.
Copyright Year	2006
Description	Author affiliation: Dept. of Electr. & Comput. Eng., Texas A&M Univ., College Station, TX (Tang, J.; Zhang, X.)
Abstract	We propose a quality-of-service (QoS) driven power and rate adaptation scheme for multicarrier communications systems over mobile wireless networks. By integrating information theory with the concept of effective capacity, our proposed scheme aims at maximizing the system throughput subject to a given delay-QoS constraint. Under the framework of convex optimization, we develop the optimal adaptation algorithms. Our analytical analyses identify an important fact that when the QoS constraint becomes loose, the optimal power-control policy converges to the well-known water-filling scheme, where the Shannon capacity can be achieved. On the other hand, when the QoS constraint gets stringent, the optimal policy converges to the scheme which operates at a constant-rate, where, by using only a limited number of subchannels, the above constant-rate is close to the Shannon capacity. This observation implies that in contrast to single-channel transmission, which trades off the throughput for the QoS provisioning, the multicarrier communications can realize both the high throughput and the stringent QoS at the same time. For instance, our simulation results indicate that by using 64 independent subchannels, our proposed algorithms can achieve more than 99% of the Shannon capacity, while guaranteeing a constant-rate transmission.
Starting Page	321
Ending Page	326
File Size	283049
Page Count	6
File Format	PDF
ISBN	1424403499
DOI	10.1109/CISS.2006.286486
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-03-22
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	effective capacity Delay effects quality-of-service (QoS) Quality of service Mobile communication Throughput Design optimization Information systems multicarrier Wireless networks optimization Mobile wireless networks Constraint theory power control information theory cross-layer design and optimization Mobile computing Information theory
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
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
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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