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Energy-efficient implementation of a wideband transceiver system with per-band equalisation and synchronisation

Vianney Anis; Connor Delaosa; Stephan Weiss; Louise H. Crockett


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  <dc:creator>Vianney Anis</dc:creator>
  <dc:creator>Connor Delaosa</dc:creator>
  <dc:creator>Stephan Weiss</dc:creator>
  <dc:creator>Louise H. Crockett</dc:creator>
  <dc:date>2018-04-16</dc:date>
  <dc:description>For emission in the TV white space spectrum, the regulators are imposing strict spectral masks, which can be fulfilled using a DFT-modulated filter-bank multi-carrier system to extract one or several TVWS channels in the 470–790MHz range. Such a system reduces the channel dispersion, but even with near-perfectly reconstructing filter banks, an equaliser is required to at least perform some form of timing synchronisation. In this work, we propose a per-band equalisation and synchronisation approach, performed by a constant modulus (CM) algorithm running concurrently with a decision-directed adaptation process for faster convergence and reduced phase ambiguity. We compare symbol- and fractionally-spaced versions, and investigate their fixed-point implementation on a field programmable gate array. We elaborate on advantages that this fractionally spaced concurrent system offers over a symbol-spaced equaliser and compare it to equalisers that are updated purely by a CM algorithm.</dc:description>
  <dc:identifier>https://zenodo.org/record/1481821</dc:identifier>
  <dc:identifier>10.1109/WCNC.2018.8377441</dc:identifier>
  <dc:identifier>oai:zenodo.org:1481821</dc:identifier>
  <dc:relation>info:eu-repo/grantAgreement/EC/H2020/675891/</dc:relation>
  <dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
  <dc:rights>https://creativecommons.org/licenses/by/4.0/legalcode</dc:rights>
  <dc:title>Energy-efficient implementation of a wideband transceiver system with per-band equalisation and synchronisation</dc:title>
  <dc:type>info:eu-repo/semantics/conferencePaper</dc:type>
  <dc:type>publication-conferencepaper</dc:type>
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