Publication detail

Scatterer Identification by Atomic Norm Minimization in Vehicular mm-Wave Propagation Channels

GROLL, H. GERSTOFT, P. HOFER, M. BLUMENSTEIN, J. ZEMEN, T. MECKLENBRÄUKER, C.

Original Title

Scatterer Identification by Atomic Norm Minimization in Vehicular mm-Wave Propagation Channels

Type

journal article in Web of Science

Language

English

Original Abstract

Sparse scatterer identification with atomic norm minimization (ANM) techniques in the delay-Doppler domain is investigated for a vehicle-to-infrastructure millimeter wave propagation channel. First, a two-dimensional ANM is formulated for jointly estimating the time-delays and Doppler frequencies associated with individual multipath components (MPCs) from short-time Fourier transformed measurements. The two-dimensional ANM is formulated as a semi-definite program and promotes sparsity in the delay-Doppler domain. The numerical complexity of the two-dimensional ANM limits the problem size which results in processing limitations on the time-frequency sample matrix size. Subsequently, a decoupled form of ANM is used together with a matrix pencil, allowing a larger sample matrix size. Simulations show that spatial clusters of a point-scatterers with small cluster spread are suitable to model specular reflection which result in significant MPCs and the successful extraction of their delay-Doppler parameters. The decoupled ANM is applied to vehicle-to-infrastructure channel sounder measurements in a sub-urban street in Vienna at 62 GHz. The obtained results show that the decoupled ANM successfully extracts the delay-Doppler parameters in high resolution for the channel's significant MPCs.

Keywords

Doppler effect; Estimation; Channel estimation; Delays; Millimeter wave communication; Minimization; Millimeter wave technology; 5G mobile communication; Intelligent vehicles; Multipath channels; Time-varying systems; Beyond 5G mobile communication; millimeter wave propagation; multipath channels; time-varying channels; vehicle-to-infrastructure connectivity

Authors

GROLL, H.; GERSTOFT, P.; HOFER, M.; BLUMENSTEIN, J.; ZEMEN, T.; MECKLENBRÄUKER, C.

Released

12. 9. 2022

Publisher

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC

Location

PISCATAWAY

ISBN

2169-3536

Periodical

IEEE Access

Year of study

10

Number

1

State

United States of America

Pages from

102334

Pages to

102354

Pages count

21

URL

https://ieeexplore.ieee.org/abstract/document/9885034

BibTex

@article{BUT181418,
  author="Herbert {Groll} and Peter {Gerstoft} and Markus {Hofer} and Jiří {Blumenstein} and Thomas {Zemen} and Christoph {Mecklenbräuker}",
  title="Scatterer Identification by Atomic Norm Minimization in Vehicular mm-Wave Propagation Channels",
  journal="IEEE Access",
  year="2022",
  volume="10",
  number="1",
  pages="102334--102354",
  doi="10.1109/ACCESS.2022.3205616",
  issn="2169-3536",
  url="https://ieeexplore.ieee.org/abstract/document/9885034"
}