Synchronisation and equalisation of an FBMC/OQAM system by a polynomial matrix pseudo-inverse

Amr A.A. Nagy, Stephan Weiss

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Abstract

Filter bank-based multicarrier using offset quadrature amplitude modulation (FMBC/OQAM) systems suffer from inter-symbol-interference (ISI) and co-channel interference (CCI) if the transmission channel is dispersive, or simply if the overall system is not synchronised. This paper considers the solution to an equaliser that can mitigate both ISI and CCI by describing the equivalent transmultiplexed channel including the filter banks as a polyphase matrix of transfer functions, and by using polynomial matrix algebra to equalise this system. We demonstrate that the reduced-rank nature of this channel matrix requires a polynomial matrix pseudo-inverse, and demonstrate how the overall FBMC/OQAM system is orthogonalised, thus removing ISI and ICI.
Original languageEnglish
Number of pages6
Publication statusPublished - 18 Dec 2017
Event17th IEEE International Symposium on Signal Processing and Information Technology - Bilbao, Spain
Duration: 18 Dec 201720 Dec 2017
http://www.isspit.org/isspit/2017/

Conference

Conference17th IEEE International Symposium on Signal Processing and Information Technology
Abbreviated titleISSPIT'17
CountrySpain
CityBilbao
Period18/12/1720/12/17
Internet address

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Keywords

  • FMBC/OQAM
  • equalisation
  • polynomial matrix factorisation

Cite this

Nagy, A. A. A., & Weiss, S. (2017). Synchronisation and equalisation of an FBMC/OQAM system by a polynomial matrix pseudo-inverse. Paper presented at 17th IEEE International Symposium on Signal Processing and Information Technology, Bilbao, Spain.