NDLI: Everything you always wanted to know about training: guidelines derived using the affine precoding framework and the CRB

Content Provider	IEEE Xplore Digital Library
Author	Vosoughi, A. Scaglione, A.
Copyright Year	1991
Abstract	In this paper, affine precoding is used to investigate the tradeoffs that exist while using the transmitter resources on training versus information symbols. The channel input is a training vector superimposed on a linearly precoded vector of symbols. A block-fading frequency-selective multi-input multi-output (MIMO) channel is considered. To highlight the tradeoffs between training and data symbols, the Fisher information matrix (FIM) is derived under two circumstances: the random parameter vector to be estimated contains 1) only fading channel coefficients and 2) unknown data symbols as well as the channel coefficients. While strategy 1 corresponds to the receiver structure in which the channel is estimated initially and the channel measurement is utilized to retrieve the data symbols, strategy 2 corresponds to the structure in which channel and symbol estimations are performed jointly. The interesting outcome of the study in this paper is that minimizing the channel Cramer-Rao bound (CRB) for strategies 1 and 2 under a total average transmit power constraint leads to different affine precoder design guidelines.
Sponsorship	IEEE Signal Processing Society
Starting Page	940
Ending Page	954
Page Count	15
File Size	579367
File Format	PDF
ISSN	1053587X
Volume Number	54
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-03-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Guidelines Frequency estimation MIMO Radio frequency Receiving antennas Acoustic signal processing Time division multiplexing GSM Radio transmitters Fading random parameter estimation Affine precoding Bayes estimator block transmission Cramer–Rao bound (CRB) Fisher information matrix (FIM) multi-input multi-output (MIMO) systems mutual information
Content Type	Text
Resource Type	Article
Subject	Signal Processing Electrical and Electronic Engineering

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