Testing 802.11p WAVE on the Road: An Error-Prone Traffic Telematics Standard

Speaker: Dr. Nicolai Czink,
Stanford UniversityAbstract: Vehicle-to-infrastructure (V2I) systems can make the road safer and its use more efficient, given that the data transmission from and to the road users over the wireless link is timely, accurate, and well presented. Under these conditions, a reduction in the number and severity of accidents can be expected. Furthermore, traffic can be more efficiently managed and congestions can be avoided. The IEEE 802.11p standard for Wireless Access on Vehicular Environments (WAVE) was derived from the 802.11a WiFi standard to support high-speed communications on the road for both road-to-car and car-to-car environments. Already in simulation tests, the standard turned out to fail in common scenarios like driving with high speeds, shadowing by other cars, or simply access by too many vehicles in dense traffic situations.Using the proprietary CVIS testbed, developed in a European research project, we tested the performance limits of 802.11p. This presentation will show that the standard (in its current version) fails to ensure reliable data transmission in almost all environments. The results also provide some guidance for installing WAVE equipment and suggest countermeasures to increase the reliability of the WAVE standard.Biography: Nicolai Czink received his MSc and PhD degrees from Vienna University of Technology in 2004 and 2008, respectively, both with distinction. Since 2005, he is with the ftw. Telecommunications Research Center Vienna, where he is Senior Researcher in the area of wireless communications at present. From April 2008 to April 2009, he was visiting scholar at the Smart Antennas Research Group at Stanford University working on MIMO interference measurements an modeling. His current interests are intelligent transportation systems an cooperative communications.Host: Andreas Molisch, 04670, EEB 530, molisch@usc.edu

Location: Hughes Aircraft Electrical Engineering Center (EEB) - 539

Audiences: Everyone Is Invited

Contact: Gerrielyn Ramos