On the Parametrization and Statistics of Propagation Graphs

Richard Prüller, Thomas Blazek, Stefan Pratschner, Markus Rupp

Publikation: Konferenzband/Beitrag in Buch/BerichtKonferenzartikelBegutachtung

Abstract

Propagation graphs (PGs) serve as a frequency-selective, spatially consistent channel model suitable for fast channel simulations in a scattering environment. So far, however, the parametrization of the model, and its consequences, have received little attention. In this contribution, we propose a new parametrization for PGs that adheres to the doubly exponentially decaying cluster structure of the Saleh-Valenzuela (SV) model. We show how to compute the newly proposed internal model parameters based on an approximation of the K-factor and the two decay rates from the SV model. Furthermore, via the singular values of multiple-input multiple-output (MIMO) channels, we compare the degrees of freedom (DoF) between our new and another frequently used parametrization. Specifically, we compare the DoF loss when the distance between antennas within the transmitter and receiver arrays or the average distance between scatterers decreases. Based on this comparison, it is shown that, in contrast to the typical parametrization, our newly proposed parametrization loses DoF in both scenarios, as one would expect from a spatially consistent channel model.
OriginalspracheEnglisch
Titel2021 15th European Conference on Antennas and Propagation (EuCAP)
Herausgeber (Verlag)IEEE Computer Society
Seiten1-5
Seitenumfang5
ISBN (Print)978-1-7281-8845-4
DOIs
PublikationsstatusVeröffentlicht - 26 März 2021
Veranstaltung2021 15th European Conference on Antennas and Propagation (EuCAP) - Dusseldorf, Germany
Dauer: 22 März 202126 März 2021

Publikationsreihe

Name15th European Conference on Antennas and Propagation, EuCAP 2021

Konferenz

Konferenz2021 15th European Conference on Antennas and Propagation (EuCAP)
Zeitraum22/03/2126/03/21

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