Result Details

Orthogonal Time Frequency Space Modulation: Pilot Power Allocation and Nonlinear Power Amplifiers

MARŠÁLEK, R.; BLUMENSTEIN, J.; PROKEŠ, A.; GÖTTHANS, T. Orthogonal Time Frequency Space Modulation: Pilot Power Allocation and Nonlinear Power Amplifiers. In Proceedings of 19th IEEE Symposium on Signal Processing and Information Technology (ISSPIT) 2019. 2019. p. 1-4. ISBN: 978-1-7281-5341-4.
Type
conference paper
Language
English
Authors
Maršálek Roman, prof. Ing., Ph.D., REL-SIX (FEEC), UREL (FEEC)
Blumenstein Jiří, doc. Ing., Ph.D., UREL (FEEC)
Prokeš Aleš, prof. Ing., Ph.D., UREL (FEEC)
Götthans Tomáš, doc. Ing., Ph.D., REL-SIX (FEEC), UREL (FEEC)
Abstract

This paper deals with a pilot power allocation in the orthogonal time-frequency space (OTFS) modulation system. In our simulations, the pilot is used for a channel estimation. Subsequently, the channel effects are equalized via a deconvolution. It is shown that proper solution of the pilot power allocation problem has significant impact on the bit-error rates. We also show that the increase of the pilot power causes notable increase of the peak-to-average (PAPR) power ratio. In consequence, high PAPR is one of the limiting factors of the pilot power increase. Considering a non-linear power amplifier, high PAPR is demonstrated to limit the OTFS bit-error rate performance.

Keywords

5G and beyond; OTFS; power amplifier nonlinearity; 2D spreading; power allocation

URL
Published
2019
Pages
1–4
Proceedings
Proceedings of 19th IEEE Symposium on Signal Processing and Information Technology (ISSPIT) 2019
Conference
IEEE International Symposium on Signal Processing and Information Technology (ISSPIT 2019)
ISBN
978-1-7281-5341-4
DOI
10.1109/ISSPIT47144.2019.9001819
UT WoS
000568621300096
EID Scopus
2-s2.0-85081295054
BibTeX 
@inproceedings{BUT159858,
  author="Roman {Maršálek} and Jiří {Blumenstein} and Aleš {Prokeš} and Tomáš {Götthans}",
  title="Orthogonal Time Frequency Space Modulation: Pilot Power Allocation and Nonlinear Power Amplifiers",
  booktitle="Proceedings of 19th IEEE Symposium on Signal Processing and Information Technology (ISSPIT) 2019",
  year="2019",
  pages="1--4",
  doi="10.1109/ISSPIT47144.2019.9001819",
  isbn="978-1-7281-5341-4",
  url="https://ieeexplore.ieee.org/document/9001819"
}
Departments
Department of Radio Electronics (UREL)
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