…
comment: The repository administrator has not yet configured an RDF license.
primary topic: Misspecified Cramer–Rao Bounds for Blind Channel Estimation Under Channel Order Misspecification

Misspecified Cramer–Rao Bounds for Blind Channel Estimation Under Channel Order Misspecification
type: AcademicArticle
type: Article
abstract: In estimation, the misspecified Cramer–Rao bound (MCRB), which is an extension of the well-known Cramer–Rao bound (CRB) when the underlying system model is misspecified, has recently attracted much attention. In this paper, we introduce a new interpretation of the MCRB, called the generalized MCRB (GMCRB), via the Moore–Penrose inverse operator. This bound is useful for singular problems and particularly blind channel estimation problems in which the Hessian matrix is noninvertible. Two closed-form expressions of the GMCRB are derived for unbiased blind estimators when the channel order is misspecified. The first bound deals with deterministic models where both the channel and unknown symbols are deterministic. The second one is devoted to stochastic models where we assume that transmitted symbols are unknown random variables i.i.d. drawn from a Gaussian distribution. Two case studies of channel order misspecification are investigated to demonstrate the effectiveness of the proposed GMCRBs over the classical CRBs. When the channel order is known or accurately estimated, both generalized bounds reduce to the classical bounds. Besides, the stochastic GMCRB is lower than the deterministic one, especially at high SNR.
date: 2021-09
volume: 69
is part of: IEEE Transactions on Signal Processing
status: peerReviewed
status: published
author list: authors
type: EPrint
type: ArticleEPrint
is part of: repository
has document: Misspecified Cramer–Rao Bounds for Blind Channel Estimation Under Channel Order Misspecification (PDF)
has document: Misspecified Cramer–Rao Bounds for Blind Channel Estimation Under Channel Order Misspecification (Other)
subject: Electronics and Communications
subject: ISI-indexed journals

Misspecified Cramer–Rao Bounds for Blind Channel Estimation Under Channel Order Misspecification (PDF)
type: Document
has file: main.pdf
has part: main.pdf

IEEE
type: Organization

IEEE Transactions on Signal Processing
type: Collection
issn: 1053587X

Trung Thanh Le
type: Person
given name: Trung Thanh
family name: Le

Linh Trung Nguyen
type: Person
given name: Linh Trung
family name: Nguyen

Abed Meraim Karim
type: Person
given name: Abed Meraim
family name: Karim

Misspecified Cramer–Rao Bounds for Blind Channel Estimation Under Channel Order Misspecification (Other)
type: Document
is version of: Misspecified Cramer–Rao Bounds for Blind Channel Estimation Under Channel Order Misspecification (PDF)
is volatile version of: Misspecified Cramer–Rao Bounds for Blind Channel Estimation Under Channel Order Misspecification (PDF)
islightbox thumbnail version of: Misspecified Cramer–Rao Bounds for Blind Channel Estimation Under Channel Order Misspecification (PDF)
has file: lightbox.jpg
has part: lightbox.jpg

Misspecified Cramer–Rao Bounds for Blind Channel Estimation Under Channel Order Misspecification (Other)
type: Document
is version of: Misspecified Cramer–Rao Bounds for Blind Channel Estimation Under Channel Order Misspecification (PDF)
is volatile version of: Misspecified Cramer–Rao Bounds for Blind Channel Estimation Under Channel Order Misspecification (PDF)
ismedium thumbnail version of: Misspecified Cramer–Rao Bounds for Blind Channel Estimation Under Channel Order Misspecification (PDF)
has file: medium.jpg
has part: medium.jpg

Misspecified Cramer–Rao Bounds for Blind Channel Estimation Under Channel Order Misspecification (Other)
type: Document
is version of: Misspecified Cramer–Rao Bounds for Blind Channel Estimation Under Channel Order Misspecification (PDF)
is volatile version of: Misspecified Cramer–Rao Bounds for Blind Channel Estimation Under Channel Order Misspecification (PDF)
issmall thumbnail version of: Misspecified Cramer–Rao Bounds for Blind Channel Estimation Under Channel Order Misspecification (PDF)
has file: small.jpg
has part: small.jpg

Misspecified Cramer–Rao Bounds for Blind Channel Estimation Under Channel Order Misspecification (Other)
type: Document
is version of: Misspecified Cramer–Rao Bounds for Blind Channel Estimation Under Channel Order Misspecification (PDF)
is volatile version of: Misspecified Cramer–Rao Bounds for Blind Channel Estimation Under Channel Order Misspecification (PDF)
is index codes version of: Misspecified Cramer–Rao Bounds for Blind Channel Estimation Under Channel Order Misspecification (PDF)
has file: indexcodes.txt
has part: indexcodes.txt

HTML Summary of #4711 Misspecified Cramer–Rao Bounds for Blind Channel Estimation Under Channel Order Misspecification
format: text/html
primary topic: Misspecified Cramer–Rao Bounds for Blind Channel Estimation Under Channel Order Misspecification

Electronics and Communications
type: Concept

ISI-indexed journals
type: Concept