Energy-efficient wideband transceiver with per-band equalisation and synchronisation

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

Research output: Contribution to conferencePaperpeer-review

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To emit in the TV white space (TVWS) spectrum, the regulator has requested very strict spectral masks, which can be fulfilled using a FFT-modulated filter-bank multi-carrier system (FBMC) 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 bank, the need for equalisation and synchronisation remains. In this work, we propose a per-band equalisation and synchronisation approach, performed by a constant modulus algorithms running concurrently with a direction-directed adaptation process for faster convergence and reduced phase ambiguity. We compare symbol- and fractionally-spaced versions, and investigate their fixed-point implementation on an FPGA. We compare the performance of the different systems in terms of mean squared error, computational cost, and robustness towards noise.
Original languageEnglish
Number of pages6
Publication statusPublished - 16 Apr 2018
EventIEEE Wireless Communications and Networking Conference - Barcelona, Spain
Duration: 15 Apr 201818 Apr 2018


ConferenceIEEE Wireless Communications and Networking Conference
Abbreviated titleWCNC
Internet address


  • TV white space spectrum
  • equalisation
  • synchronisation
  • channel dispersion


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