NDLI: Design of Fair Multi-user Transceivers with QoS and Imperfect CSI

Content Provider	IEEE Xplore Digital Library
Author	Shenouda, M.B. Davidson, T.N.
Copyright Year	2008
Description	Author affiliation: Dept. of Electr. & Comput. Eng., McMaster Univ., Hamilton, ON (Shenouda, M.B.; Davidson, T.N.)
Abstract	We consider the downlink of cellular systems in which the users have Quality of Service (QoS) requirements, and we study the design of robust fair broadcasting schemes that maximize the minimum QoS over all users when the users' channel state information (CSI) is imperfect at the transmitter. Using a bounded uncertainty model for the transmitter's estimate of users' channels we formulate each user's QoS requirement as a constraint on the mean square error (MSE) in its received signal, and we demonstrate that these MSE constraints imply constraints on the received signal- to-interference-plus-noise-ratio (SINR) of each user. Using these MSE constraints, we present a unified design approach for robust linear and non-linear transceivers with QoS requirements, and we provide quasi-convex formulations that can be efficiently solved using a one-dimensional bisection search. The proposed designs overcome the limitations of existing approaches that only provide conservative solutions and only applicable to the case of linear preceding. Furthermore, we provide tractable and computationally-efficient design formulations for a quite general model of channel uncertainty that subsumes many uncertainty regions. Our numerical results demonstrate that in the presence of uncertainty in the transmitter's knowledge of users' channels, the proposed designs provide guarantees to a larger set of minimum QoS requirements than existing approaches.
Starting Page	191
Ending Page	197
File Size	564550
Page Count	7
File Format	PDF
ISBN	9780769531359
DOI	10.1109/CNSR.2008.87
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-05-05
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Transceivers Quality of service Uncertainty Transmitters Robustness Downlink Broadcasting Channel state information Mean square error methods Signal to noise ratio Channel uncertainty Broadcast channel robust transceiver design Quality of service constraints
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
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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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