Adaptive Beaconing for Delay-Sensitive and Congestion-Aware Traffic Information Systems

  • We present a new car-to-X communication protocol, Adaptive Traffic Beacon (ATB), which supports the exchange of delay-sensitive traffic information in a wide range of scenarios by flexibly adapting to the availability of infrastructure elements as well as to the network load. From previous work, we see that centralized solutions and flooding based approaches each show benefits and drawbacks depending on traffic density, penetration, network utilization, and other parameters. This observation is in line with findings about intelligent transportation systems that have been developed for specific settings. In order to overcome this limitation, we designed ATB to be adaptive in two dimensions: FWe present a new car-to-X communication protocol, Adaptive Traffic Beacon (ATB), which supports the exchange of delay-sensitive traffic information in a wide range of scenarios by flexibly adapting to the availability of infrastructure elements as well as to the network load. From previous work, we see that centralized solutions and flooding based approaches each show benefits and drawbacks depending on traffic density, penetration, network utilization, and other parameters. This observation is in line with findings about intelligent transportation systems that have been developed for specific settings. In order to overcome this limitation, we designed ATB to be adaptive in two dimensions: First, the beacon interval is adapted dynamically and, secondly, the protocol can dynamically make use of available infrastructure elements. We concentrate on a Traffic Information System (TIS) with a focus on congestion-aware communication. Simulation experiments clearly demonstrate that ATB performs well in a broad range of settings. It maintains a non-congested wireless channel to prevent collisions during TIS data exchange.show moreshow less

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Metadaten
Author:Christoph Sommer, Reinhard German, Falko Dressler
URN:urn:nbn:de:bvb:29-opus-21261
Series (Volume number):Technical reports / Department Informatik, ISSN 2191-5008 (CS-2010-01)
Document Type:Report
Language:English
Date of Publication (online):2010/11/18
Creating Corporation:Department of Computer Science
Release Date:2010/11/18
SWD-Keyword:VANET
Institutes:Technische Fakultät -ohne weitere Spezifikation-
CCS-Classification:C.2 COMPUTER-COMMUNICATION NETWORKS
Dewey Decimal Classification:004 Datenverarbeitung; Informatik

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