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Distribution of pseudonym certificates via bursts for VANETs with low and medium mobility

: Bittl, Sebastian; Aydinli, Berke; Roscher, Karsten

Postprint urn:nbn:de:0011-n-3642113 (181 KByte PDF)
MD5 Fingerprint: b0587a78c096c4a3d855cd8f6096bb40
Created on: 18.2.2016

Institute of Electrical and Electronics Engineers -IEEE-; International Federation for Information Processing -IFIP-:
8th IFIP Wireless and Mobile Networking Conference, WMNC 2015. Proceedings : 5-7 October 2015, Munich, Germany
Piscataway, NJ: IEEE, 2015
ISBN: 978-0-7695-5662-8
Wireless and Mobile Networking Conference (WMNC) <8, 2015, Munich>
Conference Paper, Electronic Publication
Fraunhofer ESK ()
cross layer optimization; security; VANET; Car-to-x; Car2X; performance; certificate distribution; security; intelligent transport system; automotive connectivity

Wireless intelligent transport systems based on Car-to-X communication technology are about to enter the massmarket in upcoming years. Thereby, efficient and reliable security systems are a core point of concern in system design. Currently regarded digital signature schemes using pseudonym certificates can introduce significant overhead into the highly bandwidth restricted system. Thus, mechanisms to optimize the efficiency of the security mechanisms in regard to authentication delay and channel load are required. Prior work has focused on scenarios with high node mobility, e.g., freeways. However, bandwidth conserving mechanisms are also required for urban low and medium mobility scenarios to enable foreseen extension of the wireless network for the many other volatile road users like pedestrians. Hence, an approach for efficient pseudonym certificate distribution in urban scenarios is provided in this work. The given simulation based environment shows that it can enhance cooperative awareness while limiting used bandwidth. Thus, it can be regarded as well suitable for future urban intelligent transport systems.