FrFT-based EO-STBC multicarrier system for transmission over doubly-dispersive channels

Mohammed Nuri Hussin, Ahmed Solyman, Stephan Weiss, John Soraghan

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

2 Citations (Scopus)


This paper focuses on the enhancement of extended orthogonal space-time block coding (EO-STBC) when transmitting over a doubly-dispersive channel. The frequency selective nature of the channel favours the combination with a multicarrier approach such as orthogonal frequency division multiplexing (OFDM). However, as Doppler spread increases, OFDM loses its orthogonality, resulting in severe inter-symbol (ISI) and inter-carrier interference (ICI). This is addressed firstly by the generalisation of OFDm to fractional Fourier transform (FrFT)-based multicarrier approaches, which can provide better resilience in the presence of Doppler spread. Secondly, in higher mobility scenarios, an equalisation scheme is employed, whose lower complexity in an FrFT-based multicarrier setting can further minimised by a reduction of the equaliser. Simulation results highlighting the potential performance improvements are presented.
Original languageEnglish
Title of host publication2012 international symposium on wireless communication systems (ISWCS)
Place of PublicationNew York
Number of pages5
ISBN (Print)9781467307611
Publication statusPublished - 2012
Event9th International Symposium on Wireless Communication Systems - Paris, France
Duration: 28 Aug 201231 Aug 2012


Conference9th International Symposium on Wireless Communication Systems


  • FrFT-based
  • EO-STBC multicarrier system
  • transmission
  • doubly-dispersive channels
  • fractional fourier transform
  • space time coding
  • multicarrier transmission
  • low complexity equalisation


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