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research
Range estimation in multicarrier systems in the presence of interference: Performance limits and optimal signal design
Authors
A. A. Damico
D. Dardari
+3Β more
S. Gezici
Y. Karisan
U. Mengali
Publication date
1 January 2011
Publisher
'Institute of Electrical and Electronics Engineers (IEEE)'
Doi
Cite
Abstract
Cataloged from PDF version of article.Theoretical limits on time-of-arrival (equivalently, range) estimation are derived for multicarrier systems in the presence of interference. Specifically, closed-form expressions are obtained for Cramer-Rao bounds (CRBs) in various scenarios. In addition, based on CRB expressions, an optimal power allocation (or, spectrum shaping) strategy is proposed. This strategy considers the constraints not only from the sensed interference level but also from the regulatory emission mask. Numerical results are presented to illustrate the improvements achievable with the optimal power allocation scheme, and a maximum likelihood time-of-arrival estimation algorithm is studied to assess the effects of the proposed approach in practical estimators. Β© 2011 IEEE
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Archivio della Ricerca - UniversitΓ di Pisa
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Last time updated on 13/04/2017
Archivio istituzionale della ricerca - Alma Mater Studiorum UniversitΓ di Bologna
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Last time updated on 03/09/2019
Bilkent University Institutional Repository
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Last time updated on 12/11/2016
Bilkent University Institutional Repository
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Last time updated on 12/11/2016