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Optimizing the channel resource usage for sensor data sharing with V2X communications
CARISSMA – Center of Automotive Research on Integrated Safety Systems and Measurement Area, Technische Hochschule Ingolstadt, Ingolstadt, Germany,.ORCID-id: 0000-0001-6238-1628
AIFB – Institute of Applied Informatics and Formal Description Methods, Karlsruhe Institute of Technology, Karlsruhe, Germany.ORCID-id: 0000-0003-4894-4134
CARISSMA – Center of Automotive Research on Integrated Safety Systems and Measurement Area, Technische Hochschule Ingolstadt, Ingolstadt, Germany,.
2023 (Engelska)Ingår i: at – Automatisierungstechnik, ISSN 0178-2312, Vol. 71, nr 4, s. 311-317Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Sensor data sharing in V2X communication enables vehicles to exchange locally perceived sensor data with each other to increase their environmental awareness. It relies on the periodic exchange of selected, safety-relevant objects. Object selection is used to reduce channel resource usage. Additionally, vehicles use congestion control mechanisms to avoid overloading the channel. Currently, both object selection and congestion control mechanisms operate independently. We study a congestion-aware object filtering approach combining both and improving the performance of sensor data sharing. © 2023 Walter de Gruyter GmbH, Berlin/Boston.

Ort, förlag, år, upplaga, sidor
München: Walter de Gruyter, 2023. Vol. 71, nr 4, s. 311-317
Nyckelord [en]
collective perception, data congestion, V2X, vehicular communications
Nationell ämneskategori
Kommunikationssystem
Identifikatorer
URN: urn:nbn:se:hh:diva-50447DOI: 10.1515/auto-2022-0162ISI: 000964957200009Scopus ID: 2-s2.0-85153334893OAI: oai:DiVA.org:hh-50447DiVA, id: diva2:1757137
Anmärkning

Funing: The German Science Foundation (DFG) by project KOALA 2 under number 273374642 within the priority program Cooperatively Interacting Automobiles (CoIn-Car, SPP 1835). Karlsruhe Institute of Technology also acknowledges the support from Helmholtz Program “Engineering Digital Futures”.

Tillgänglig från: 2023-05-15 Skapad: 2023-05-15 Senast uppdaterad: 2023-05-22Bibliografiskt granskad
Ingår i avhandling
1. Sensor Data Sharing in V2X Communications: Protocol Design and Performance Optimization of Collective Perception
Öppna denna publikation i ny flik eller fönster >>Sensor Data Sharing in V2X Communications: Protocol Design and Performance Optimization of Collective Perception
2023 (Engelska)Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
Abstract [en]

Sensor data sharing involves exchanging sensor data among multiple devices, systems, or platforms through various means, such as wired or wireless communication, cloud storage, and distributed computing. In Vehicle-to-Everything (V2X) communication, sensor data sharing is known as Collective Perception (CP). V2X Collective Perception is the principle of exchanging sensor data among V2X-capable stations, such as vehicles, vulnerable road users, or roadside units, by exchanging lists of perceived objects in the allocated 5.9 GHz frequency band for road safety and traffic efficiency. An object can be anything relevant to traffic safety and is described using its characteristics such as position, heading, and velocity. Objects are detected thanks to sensors such as cameras, LiDARs, and radars mounted on V2X stations. This thesis investigates the message generation rule for CP, specifically how often and with which objects a Collective Perception Message (CPM) should be generated for transmission. The contained studies focus on the challenges posed by the limited bandwidth available in the 5.9 GHz channel against the object selection for inclusion in CPMs. In the first part of the realized studies, the protocol design and the requirements of CP are comprehended from the network and application-related aspects, concluding that the process of filtering objects is necessary to control the channel usage of CP. Moreover, results show that object filtering is only beneficial in high-traffic density scenarios and should not be applied when channel resources are plenty available. In the second part, methods are developed and assessed to adapt the object filtering mechanism to the available channel resources and control information redundancy, i.e., controlling the number of vehicles transmitting updates about the same objects. Through a combination of theoretical analysis, large-scale simulations, and experimental evaluation, this thesis provides a better understanding of the requirements of CP for object filtering and shows the benefits of a developed novel algorithm to adapt object filtering to the available channel resources. Additionally, it elaborates on new metrics and provides a requirements analysis and performance assessment of selected information redundancy reduction techniques. Finally, the results show that combining both approaches enables efficient control of information redundancy while allowing efficient channel resource usage.

Ort, förlag, år, upplaga, sidor
Halmstad: Halmstad University Press, 2023. s. 43
Serie
Halmstad University Dissertations ; 97
Nyckelord
V2X, sensor data sharing, vehicular communications, Collective Perception, data congestion, Decentralized Congestion Control
Nationell ämneskategori
Kommunikationssystem
Identifikatorer
urn:nbn:se:hh:diva-50463 (URN)978-91-89587-06-9 (ISBN)978-91-89587-07-6 (ISBN)
Disputation
2023-06-09, Wigforssalen, Kristian IV:s väg 3, Halmstad, 13:15 (Engelska)
Opponent
Handledare
Projekt
KOALA2 under number 273374642 within the priority program Cooperatively Interacting Automobiles (CoIn-Car, SPP 1835).
Tillgänglig från: 2023-05-23 Skapad: 2023-05-18 Senast uppdaterad: 2023-05-23Bibliografiskt granskad

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