ISI Mitigating Precoder Design Method for MISO FMT Systems

  • Bangwon Seo
  • Joonwoo ShinEmail author


This paper considers the inter-symbol interference mitigating precoder design problem for filtered multi-tone (FMT) systems. In FMT systems, due to the time-domain overlapped impulse response of a prototype filter, the desired channel and the temporal interference, referred to as inter-symbol interference (ISI), channel are linearly dependent, and it is inappropriate to adopt conventional MISO precoding schemes such as zero-forcing and matched-filtering methods. Instead, inspired by the approximate lower-bound equivalence of ISI (from temporally adjacent symbols to the desired symbol) and leakage interference (from the desired symbol to adjacent symbols), we propose a signal-to-leakage-interference-plus-noise ratio maximizing precoder design method to mitigate the ISI. From numerical simulations, it is demonstrated that the proposed precoder design method outperforms existing methods.


Filtered multi-tone ISI mitigating precoder Multiple antennas 



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© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Division of Electrical, Electronic and Control EngineeringKongju National UniversityCheonan-si, Seobuk-guSouth Korea
  2. 2.Division of Navigation ScienceKorea Maritime and Ocean University (KMOU)Yeongdo-guSouth Korea

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