Dezentrale Systeme und Netzdienste Marc Torrent Moreno 1 Institut für Telematik, Universität Karlsruhe (TH), 2005 VANETs Marc Torrent-Moreno, Prof. Hannes Hartenstein Decentralized Systems and Network Services Institute for Telematics, University of Karlsruhe April 15 th 2005
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Dezentrale Systeme und NetzdiensteMarc Torrent Moreno 1
Institut für Telematik, Universität Karlsruhe (TH), 2005
VANETsMarc Torrent-Moreno, Prof. Hannes Hartenstein
Decentralized Systems and Network ServicesInstitute for Telematics, University of Karlsruhe
April 15th 2005
Marc Torrent Moreno 2Institut für Telematik, Universität Karlsruhe (TH), 2005 Dezentrale Systeme und Netzdienste
Main Motivation (In all American presentations ;-))
According to the U.S. National Highway Traffic Safety Administration (2003):
» ~6.3 million police-reported traffic accidents
» ~43,000 people were killed
» ~3 million persons injured
» Annual economic impact of traffic-related accidents: >$230 billion
Automotive safety systems trend go from passive to intelligent and active … Preventive
Marc Torrent Moreno 3Institut für Telematik, Universität Karlsruhe (TH), 2005 Dezentrale Systeme und Netzdienste
Where communications can help
… main focus: SAFETY
* Source: DaimlerChrysler AG
Marc Torrent Moreno 4Institut für Telematik, Universität Karlsruhe (TH), 2005 Dezentrale Systeme und Netzdienste
Technology Final Goals
» Safety on Roads (huge list of situations/applications considered)– Reducing accidents– Alleviating accident damages
» Traffic Conditions– Improve transport efficiency– Monitor traffic demand
» Getting relevance since Oct’02: FCC allocates 75MHz of spectrum to improve safety, efficiency and comfort on roads
» Currently both industry and academia involved in ambitious projects motivated by governmental sponsorships
Marc Torrent Moreno 7Institut für Telematik, Universität Karlsruhe (TH), 2005 Dezentrale Systeme und Netzdienste
Related Conferences/Workshops
» IEEE Vehicular Technology Conference (VTC)
» IEEE Intelligent Vehicles Symposium (IV)
» IEEE Intelligent Transportation Systems (ITS)
» ACM International Workshop on Vehicular Ad Hoc Networks (VANET)
» International Workshop on Intelligent Transportation (WIT)
Marc Torrent Moreno 8Institut für Telematik, Universität Karlsruhe (TH), 2005 Dezentrale Systeme und Netzdienste
1st ACM workshop on Vehicular Ad-Hoc Networks (VANET 2004)
» Ultimate goal: to explore the development of wireless vehicular ad hoc networking technologies
» Main interest: safety and commercial applications enabled by short to medium range communication systems and/or networks (vehicle-vehicle or vehicle-roadside)
» Call for papers: new applications, networking protocols, security paradigms, network management technologies, power control, modulation, coding, channel modeling, etc.
» Impression from attendance:– Emerging and motivated research community– Lots of interest from industry
http://www.sigmobile.org/workshops/vanet2005/
2005:
Marc Torrent Moreno 9Institut für Telematik, Universität Karlsruhe (TH), 2005 Dezentrale Systeme und Netzdienste
http://www.leearmstrong.com/DSRC/DSRCHomeset.htm/ (all info, up to date)http://grouper.ieee.org/groups/scc32/dsrc/index.html/ (standarization)
» Europe:– Car to Car Communication Consortium
http://www.car-to-car.org/– PReVENT
http://www.prevent-ip.org/– CarTalk
http://www.cartalk2000.net/– Network on Wheels (Germany)
http://www.network-on-wheels.de/
» Japan:– ITS Japan
http://www.its-ip.org/
Marc Torrent Moreno 10Institut für Telematik, Universität Karlsruhe (TH), 2005 Dezentrale Systeme und Netzdienste
Projects Main Goals
» Assess today’s and future applications
» Specify technology/system
» Push standardization process
» Find adequate market introduction strategies
Marc Torrent Moreno 11Institut für Telematik, Universität Karlsruhe (TH), 2005 Dezentrale Systeme und Netzdienste
Network on Wheels Project
» Picking up FleetNet project results (Demonstrator deployed)
» Founded by German Ministry of Education and Research (BMB+F)
» Started in June 2004, it will last until May 2008
» Main goals: – Solve technical challenges related to robustness, performance, scalability
and security for inter-vehicle communications– Design base architecture and platform for VANET technology– Explore applications for market introduction
Marc Torrent Moreno 12Institut für Telematik, Universität Karlsruhe (TH), 2005 Dezentrale Systeme und Netzdienste
VANETs Remarks (I)
» 802.11 OFDM decided as the lower layer technology (~802.11a)
» USA dedicated 75MHz at 5,9Ghz band. 7 Channels of 10Mhz
» Europe (C2CCC) in the process of getting some bandwidth
» For car manufacturers costs are a major concern:– All cars will have GPS receiver– Only one transceiver? (channel hopping?)– Base system without Digital Map? (benefit for safety, non-safety?)
» USA … they are taking decisions faster: – FCC defined 3 priorities in its report : Safety-of-Life, Safety, Non-Safety– 1 Control channel where safety applications should reside– 6 Service channels to support non-safety traffic– Standardization bodies involved: IEEE, ASTM ...
Marc Torrent Moreno 13Institut für Telematik, Universität Karlsruhe (TH), 2005 Dezentrale Systeme und Netzdienste
VANETs Remarks (II): Data traffic estimation req.
Non-Safety0 – 90N/AN/A> 20MbpsMovie Download(2 hours of MPEG 1) /10 min. down. time
Non-Safety0 – 90Periodic~500~100~2Kbps
Service Announc.
Non-Safety≤15Event~50~100Toll Collection
Safety300 – 1000Event~1000~100Transit Vehicle Signal Priority