Detail publikace

FBMC-OQAM in Doubly-Selective Channels: A New Perspective on MMSE Equalization

Originální název

FBMC-OQAM in Doubly-Selective Channels: A New Perspective on MMSE Equalization

Anglický název

FBMC-OQAM in Doubly-Selective Channels: A New Perspective on MMSE Equalization

Jazyk

en

Originální abstrakt

In many practical cases, one-tap equalizers achieve a close to optimum performance in filter bank multi-carrier modulation systems. However, if the channel is highly doubly-selective, that is, time-selective and frequency-selective, enhanced equalization methods might be necessary. In this paper, we generalize the n-tap Minimum Mean Squared Error (MMSE) equalization, proposed in literature, by also including neighboring subcarriers into the equalization process. As a reference, we also derive a full block MMSE equalizer and compare to a low-complexity interference cancellation scheme. Our investigation starts with a single-antenna system and is later extended to multiple antennas.

Anglický abstrakt

In many practical cases, one-tap equalizers achieve a close to optimum performance in filter bank multi-carrier modulation systems. However, if the channel is highly doubly-selective, that is, time-selective and frequency-selective, enhanced equalization methods might be necessary. In this paper, we generalize the n-tap Minimum Mean Squared Error (MMSE) equalization, proposed in literature, by also including neighboring subcarriers into the equalization process. As a reference, we also derive a full block MMSE equalizer and compare to a low-complexity interference cancellation scheme. Our investigation starts with a single-antenna system and is later extended to multiple antennas.

BibTex


@inproceedings{BUT141205,
  author="Ronald {Nissel} and Markus {Rupp} and Roman {Maršálek}",
  title="FBMC-OQAM in Doubly-Selective Channels: A New Perspective on MMSE Equalization",
  annote="In many practical cases, one-tap equalizers achieve a  close  to  optimum  performance  in  filter  bank  multi-carrier
modulation  systems.  However,  if  the  channel  is  highly  doubly-selective, that is, time-selective and frequency-selective, enhanced equalization   methods   might   be   necessary.   In   this   paper,   we generalize  the  n-tap  Minimum  Mean  Squared  Error  (MMSE) equalization,  proposed  in  literature,  by  also  including  neighboring subcarriers into the equalization process. As a reference, we also derive a full block MMSE equalizer and compare to a low-complexity  interference  cancellation  scheme.  Our  investigation starts  with  a  single-antenna  system  and  is  later  extended  to
multiple  antennas.",
  booktitle="Proceedings of 18th IEEE  International Workshop on Signal Processing Advances in Wireless Communications (SPAWC 2017)",
  chapter="141205",
  doi="10.1109/SPAWC.2017.8227806",
  howpublished="online",
  year="2017",
  month="july",
  pages="1--5",
  type="conference paper"
}