Integrated Sensing and Communication Based on Road Side Units for Intersection Monitoring

Bönsch J, Reitz P, Motzelt J, Franchi N, Lübke M (2025)

Publication Language: English

Publication Type: Conference contribution, Conference Contribution

Publication year: 2025

Event location: Erlangen

DOI: 10.1109/WSA65299.2025.11202842

Abstract

Combining sensing and communication into a single system allows the integration of radar sensors mounted on locally installed road side units into future intelligent transportation systems. These units have great potential to improve safety in dense intersection scenarios. However, this combined functionality is limited due to their potential interference. This paper investigates the influences of antenna characteristics on sensing and communication performance in crossing scenarios at 77 GHz. Different antenna characteristics are compared in ray-tracing simulations. The radar sensing performance is evaluated based on the maximum peak detection in the range-Doppler map, while the communication is evaluated based on the channel characteristics. The different antenna types achieve either a higher detection power in the angular region or a higher antenna focus. The communication is compared with respect to the root mean square delay spread and the minimum timing delay for an interferencefree frequency-modulated continuous wave (FMCW) sensing. The power of the line-of-sight path between the radar-equipped road side units varies over 20 dB between the different antennas. The alignment with each other results in even higher gains and losses. The results show that coordinating the different RSUs with an additional time or frequency scheduling is necessary. In the future, the intersection scene will be improved with more road users to investigate the antenna characteristics' impacts further.

Authors with CRIS profile

Jonas Bönsch Lehrstuhl für Intelligente Technische Elektronik und Systeme Philipp Reitz Lehrstuhl für Intelligente Technische Elektronik und Systeme Julian Motzelt Lehrstuhl für Intelligente Technische Elektronik und Systeme Norman Franchi Lehrstuhl für Intelligente Technische Elektronik und Systeme Maximilian Lübke Lehrstuhl für Intelligente Technische Elektronik und Systeme

How to cite

APA:

Bönsch, J., Reitz, P., Motzelt, J., Franchi, N., & Lübke, M. (2025). Integrated Sensing and Communication Based on Road Side Units for Intersection Monitoring. In Proceedings of the 2025 28th International Workshop on Smart Antennas (WSA). Erlangen.

MLA:

Bönsch, Jonas, et al. "Integrated Sensing and Communication Based on Road Side Units for Intersection Monitoring." Proceedings of the 2025 28th International Workshop on Smart Antennas (WSA), Erlangen 2025.

BibTeX: Download