Detail publikace

Vehicular Channel Characterization in Orthogonal Time-Frequency Space

BLAZEK, T. GROLL, H. PRATSCHNER, S. ZÖCHMANN, E.

Originální název

Vehicular Channel Characterization in Orthogonal Time-Frequency Space

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

Orthogonal time-frequency space (OTFS) modulation has been suggested as modulation scheme for the fifth generation of wireless communications and beyond. The scheme is promoted as especially well apt to tackle future challenges of high mobility, millimeter wave communications (mmWave) and massive Multiple-Input Multiple-Output (MIMO). In this paper we investigate the observed channel properties in the OTFS domain from mmWave vehicular crossroads measurements. To assess the sparsity of the resulting delay-Doppler channel, we use Akaike's information criteria, which consider the trade-off between mean squared error and overfitting. Our analysis shows that in the OTFS domain, the observed channel is in deed sparse, with an optimal number of 16 channel taps out of up to 1344 possible. Our analysis furthermore shows that this property of observing sparse channels is caused mainly by the high number of orthogonal symbols resulting from modulation in two domains.

Klíčová slova

mmWave; OTFS; Channel Characterization; V2I; Measurements

Autoři

BLAZEK, T.; GROLL, H.; PRATSCHNER, S.; ZÖCHMANN, E.

Vydáno

20. 5. 2019

ISBN

978-1-7281-2373-8

Kniha

Proceedings of 2019 IEEE International Conference on Communications Workshops (ICC Workshops)

Strany od

1

Strany do

5

Strany počet

5

BibTex

@inproceedings{BUT163618,
  author="Thomas {Blazek} and Herbert {Groll} and Stefan {Pratschner} and Erich {Zöchmann}",
  title="Vehicular Channel Characterization in Orthogonal Time-Frequency Space",
  booktitle="Proceedings of 2019 IEEE International Conference on Communications Workshops (ICC Workshops)",
  year="2019",
  pages="1--5",
  isbn="978-1-7281-2373-8"
}