Publication result detail

Model Order Selection for LASSO Fitted Millimeter Wave Vehicular Channel Data

BLAZEK, T.; ZÖCHMANN, E.; MECKLENBRÄUKER, C.

Original Title

Model Order Selection for LASSO Fitted Millimeter Wave Vehicular Channel Data

English Title

Model Order Selection for LASSO Fitted Millimeter Wave Vehicular Channel Data

Type

Paper in proceedings (conference paper)

Original Abstract

For analysis of vehicle-to-vehicle (V2V) communications, a firm understanding of the underlying channel is crucial. Through spatial filtering of narrow beams millimeter wave (mmWave) channels become sparse. As accurate channel models are required, without overfitting channel measurements, we investigate the optimal model order given V2V mmWave channel measurements. We use the complex Least Absolute Shrinkage and Selection Operator (LASSO) to find a sparse tapped-delay line representation of the measured channel, and apply the Akaike Information Criterion to find the optimal model order. Beyond this optimal order we start to fit measurement noise. Our results show, that for the given measurements, 4 to 8 taps prove to be an ideal model order.

English abstract

For analysis of vehicle-to-vehicle (V2V) communications, a firm understanding of the underlying channel is crucial. Through spatial filtering of narrow beams millimeter wave (mmWave) channels become sparse. As accurate channel models are required, without overfitting channel measurements, we investigate the optimal model order given V2V mmWave channel measurements. We use the complex Least Absolute Shrinkage and Selection Operator (LASSO) to find a sparse tapped-delay line representation of the measured channel, and apply the Akaike Information Criterion to find the optimal model order. Beyond this optimal order we start to fit measurement noise. Our results show, that for the given measurements, 4 to 8 taps prove to be an ideal model order.

Keywords

mmWave; Vehicular Channel Models; c-LASSO

Key words in English

mmWave; Vehicular Channel Models; c-LASSO

Authors

BLAZEK, T.; ZÖCHMANN, E.; MECKLENBRÄUKER, C.

RIV year

2020

Released

09.09.2018

ISBN

978-1-5386-6009-6

Book

Proceedings of 29th IEEE Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)

Pages from

80

Pages to

84

Pages count

5

Full text in the Digital Library

http://hdl.handle.net/

BibTex

@inproceedings{BUT163615,
  author="Thomas {Blazek} and Erich {Zöchmann} and Christoph {Mecklenbräuker}",
  title="Model Order Selection for LASSO Fitted Millimeter Wave Vehicular Channel Data",
  booktitle="Proceedings of 29th IEEE Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)",
  year="2018",
  pages="80--84",
  isbn="978-1-5386-6009-6"
}