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Development of a Latency Optimized Communication Device for WAVE and SAE Based V2X-Applications
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 05, 2016 by SAE International in United States
Annotation ability available
Various algorithms such as emergency brake or crash warning using V2X communication have been published recently. For such systems hard real-time constraints have to be satisfied. Therefore latency needs to be minimized to keep the message processing delay below a certain threshold. Existing V2X systems based on the IEEE 1609 and SAE J2735 standards implement most message processing in software. This means the latency of these systems strongly depends on the CPU load as well as the number of incoming messages per time. According to safety constraints all messages of nearby vehicles have to be processed, whereby no prediction of the message importance can be given without analyzing the message content.
Regarding the aforementioned requirements we propose a novel architecture that optimizes latency to satisfy the hard real-time constraints for V2X messages. The novel concept defines latencies of the standards that are safety critical for V2X communication and provides mechanisms to reduce the load of the V2X application processing unit (V2X-APU). The concept supports filtering of messages based on position and direction (GeoCast) to reduce the amount of relevant messages. The concept was implemented with dedicated hardware accelerators to support the V2X-APU. This hardware implementation optimizes the data-flow to minimize the latencies in the V2X communication unit.
We showed that latencies, processing times and CPU load can be minimized for V2X communication. An evaluation of the results shows that our concept can provide guaranteed small message latencies even in worst case conditions, allowing safety algorithms to work effectively and reliably.
CitationPistorius, F., Lauber, A., Pfau, J., Klimm, A. et al., "Development of a Latency Optimized Communication Device for WAVE and SAE Based V2X-Applications," SAE Technical Paper 2016-01-0150, 2016, https://doi.org/10.4271/2016-01-0150.
- Rakouth H., Alexander P., Brown A. J., Kosiak W., Fukushima M., Ghosh L., Hedges C., Kong H., Kopetzki S., Siripurapu R. and Shen J., V2x communication technology: Field experience and comparative, Beijing, China, 2012
- IEEE Standards Association, “IEEE standard 802.11p,” 2010.
- IEEE, “IEEE std 1609-2013; IEEE standard for wireless access in vehicular environments,” Apr. 2013.
- SAE International Surface Vehicle Standard, “Dedicated Short Range Communications (DSRC) Message Set Dictionary,” SAE Standard J2735, Rev. Nov. 2009
- Li, Yunxin Jeff. "An overview of the DSRC/WAVE technology." Quality, Reliability, Security and Robustness in Heterogeneous Networks. Springer Berlin Heidelberg, 2012.
- Wolf M., “Security engineering for vehicular IT systems,” Dissertation, Ruhr-University Bochum, Bochum, 2008.
- simTD, “Testfeld Deutschland: Modellregion Hessen,” Sep. 2015
- U.S. Department of Transportation, “safercar“, 2014
- Automobiel Management“Mercedes E-Class is the new benchmark for safety systems“, 2015
- CohdaWireless, "Hardware", 2015.
- Kappsch TrafficCom AG, “Evk-3300. V2X evaluation kit”.
- Gräfling, S.; Mahonen, P.; Riihijärvi, J., "Performance evaluation of IEEE 1609 WAVE and IEEE 802.11p for vehicular communications," Ubiquitous and Future Networks (ICUFN), 2010
- Benjamin Glas, Oliver Sander, Klaus D. Müller-Glaser, and Jürgen Becker, "Real-time Car-to-X Communication Security and E/E Architecture Integration." ATZelektronik worldwide, 2012.
- Miroslav Knezevic, Ventzislav Nikov, and Peter Rombouts, “Low-Latency ECDSA Signature Verification - A Road Towards Safer Traffic -”, IACR Cryptology ePrint Archive, 2014
- Petri M., "Latenzverringerung in Basisbandprozessoren am Beispiel eines hochratigen OFDM-Kommunikationssystems.", 2012.
- Mueller R., Teubner J. and Alonso G., “Data processing on FPGAs,” Proceedings of the VLDB Endowment, 2009
- Kung A., “Security architecture and mechanisms for v2v/v2i,” SeVe-Com, Deliverable SeVeCom-D.2.1-v3.0, Feb. 2008.
- Moreno M. T., “Inter-vehicle communications: Achieving safety in distributed wireless environment (challenges, systems and protocols),” Dissertation, University Karlsruhe, Jul. 2007.
- Aydos M., Yantk T., and Koc C., “A high-speed ECC-based wireless authentication on an ARM microprocessor,” in Computer Security Applications, Dec. 2000.
- U.S. Department of Transportation, “Vehicle Safety Communications Project Task 3 Final Report - Identify Intelligent Vehicle Safety Applications Enabled by DSRC,” 2015.
- IEEE Standard for Wireless Access in Vehicular Environments (WAVE), “Multi-channel Operation,” IEEE Standard 1609.4, Rev. 2010.
- Glas, B., "Trusted Computing für adaptive Automobilsteuergeräte im Umfeld der Inter-Fahrzeug-Kommunikation," Karlsruhe, KIT Scientific Publishing, 2011
- U.S. Department of Defense, “GPS Standard Positioning Service (SPS) Performance Standard,” 2008.
- SAE International Surface Vehicle Standard, “Dedicated Short Range Communication (DSRC) Minimum Performance Requirements,” SAE Standard J2945, work in progress 2016
- SAE International Surface Vehicle Standard, “On-Board System Requirements for V2V Safety Communications,” SAE Standard J2945.1, work in progress 2016
- Park, Y., and Kim, H., “Application-Level Frequency Control of Periodic Safety Messages in the IEEE WAVE,” IEEE Transactions on Vehicular Technology, 2012