Wireless digital twin for assessing the reliability of vehicular communication links

Stefan Zelenbaba (Speaker), Benjamin Rainer, Markus Hofer, Thomas Zemen

Research output: Chapter in Book or Conference ProceedingsConference Proceedings with Oral Presentationpeer-review

Abstract

Digital twins are becoming a key technology in
evaluating hardware and system performance in wireless communications. The explosion of new use cases in time-sensitive, safety critical scenarios and the stringent requirements for new communication standards are creating a demand for repeatable and cost-effective verification methodologies. In this paper we
propose a methodology for building site-specific digital twins of wireless vehicular communication links, enabling us to obtain
time-variant packet error rates and asses the link reliability in safety-critical vehicular communications scenarios. The digital
twin utilizes a real-time geometry-based stochastic channel model to simulate doubly selective channel frequency responses. The
frequency responses are used as input to a hardware-in-theloop setup, to obtain time-variant packet error rates between two commercial modems. We demonstrate the functionality of the proposed approach by developing a digital twin of a multi-link vehicular scenario. Based on time-critical application requirements we use the obtained error rates to estimate the 90 % tail probability of the link level latency. In our assessment of the obtained metrics, we see how a geo-routing scenario, combining a shadowed with a relay link, can be used to increase the link reliability and reduce link latency.
Original languageEnglish
Title of host publicationIEEE Global Communications Conference (GLOBECOM)
Number of pages6
Publication statusPublished - Dec 2022
Event2022 IEEE Global Communications Conference (GLOBECOM) -
Duration: 4 Dec 20228 Dec 2022

Conference

Conference2022 IEEE Global Communications Conference (GLOBECOM)
Period4/12/228/12/22

Research Field

  • Enabling Digital Technologies

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