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Abstract
Geometric environment information aids future distributed radio infrastructures in providing services, such as ultra-reliable communication, positioning, and wireless power transfer (WPT). An a priori known environment model cannot always be assumed in practice. This paper investigates the capabilities of detecting specularly reflecting surfaces in a bistatic multiple-input multiple-output (MIMO) radar setup operating at sub-10GHz frequencies. While rough surfaces generate diffuse reflections originating from their actual position, flat surfaces act like “mirrors,” causing directive reflections that virtually originate “behind” them. Despite these propagation characteristics, we can estimate the locations of flat metal walls from reflections originating at their surface using synthetic aperture (SA) measurements. The performance gain achievable by exploiting this environment information is analyzed by evaluating WPT capabilities in a geometry-based beamforming setup. We show that it is possible to predict channel state information (CSI) with a geometric channel model. Our geometry-based beamformer suffers an efficiency loss of only 1.1dB compared with a reciprocity-based beamformer given perfect CSI.
Originalsprache | englisch |
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Titel | ICASSPW 2023 - 2023 IEEE International Conference on Acoustics, Speech and Signal Processing Workshops, Proceedings |
Seitenumfang | 4 |
ISBN (elektronisch) | 979-8-3503-0261-5 |
DOIs | |
Publikationsstatus | Veröffentlicht - 2 Aug. 2023 |
Veranstaltung | 48th IEEE International Conference on Acoustics, Speech, and Signal Processing: ICASSP 2023 - Rhodos, Griechenland Dauer: 4 Juni 2023 → 9 Juni 2023 |
Konferenz
Konferenz | 48th IEEE International Conference on Acoustics, Speech, and Signal Processing |
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Kurztitel | ICASSP 2023 |
Land/Gebiet | Griechenland |
Ort | Rhodos |
Zeitraum | 4/06/23 → 9/06/23 |
ASJC Scopus subject areas
- Information systems
- Signalverarbeitung
- Computernetzwerke und -kommunikation
- Angewandte Informatik
- Akustik und Ultraschall
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EU - REINDEER - REsilient INteractive-Anwendungen durch Hyper-Diversity in energieeffizienter RadioWeaves-Technologie
Witrisal, K., Deutschmann, B., Wilding, T. & Leitinger, E.
1/01/21 → 30/06/24
Projekt: Forschungsprojekt