Effects of wireless physical layer modeling in mobile ad hoc networks
MobiHoc '01 Proceedings of the 2nd ACM international symposium on Mobile ad hoc networking & computing
Wireless Communications: Principles and Practice
Wireless Communications: Principles and Practice
Impact of radio irregularity on wireless sensor networks
Proceedings of the 2nd international conference on Mobile systems, applications, and services
Experimental evaluation of wireless simulation assumptions
MSWiM '04 Proceedings of the 7th ACM international symposium on Modeling, analysis and simulation of wireless and mobile systems
Empirical determination of channel characteristics for DSRC vehicle-to-vehicle communication
Proceedings of the 1st ACM international workshop on Vehicular ad hoc networks
TrafficView: traffic data dissemination using car-to-car communication
ACM SIGMOBILE Mobile Computing and Communications Review
An efficient, unifying approach to simulation using virtual machines
An efficient, unifying approach to simulation using virtual machines
VITP: an information transfer protocol for vehicular computing
Proceedings of the 2nd ACM international workshop on Vehicular ad hoc networks
An integrated mobility and traffic model for vehicular wireless networks
Proceedings of the 2nd ACM international workshop on Vehicular ad hoc networks
An evaluation of inter-vehicle ad hoc networks based on realistic vehicular traces
Proceedings of the 7th ACM international symposium on Mobile ad hoc networking and computing
A measurement study of vehicular internet access using in situ Wi-Fi networks
Proceedings of the 12th annual international conference on Mobile computing and networking
CarTel: a distributed mobile sensor computing system
Proceedings of the 4th international conference on Embedded networked sensor systems
Surface street traffic estimation
Proceedings of the 5th international conference on Mobile systems, applications and services
Proceedings of the second ACM workshop on Challenged networks
Challenge: peers on wheels - a road to new traffic information systems
Proceedings of the 13th annual ACM international conference on Mobile computing and networking
Virtual trip lines for distributed privacy-preserving traffic monitoring
Proceedings of the 6th international conference on Mobile systems, applications, and services
The pothole patrol: using a mobile sensor network for road surface monitoring
Proceedings of the 6th international conference on Mobile systems, applications, and services
How much of dsrc is available for non-safety use?
Proceedings of the fifth ACM international workshop on VehiculAr Inter-NETworking
ICDCS '09 Proceedings of the 2009 29th IEEE International Conference on Distributed Computing Systems
The effect of congestion frequency and saturation on coordinated traffic routing
PRIMA'11 Proceedings of the 14th international conference on Agents in Principle, Agents in Practice
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We consider the problem of data dissemination in vehicular networks. Our main goal is to compare the application-level performance of fully distributed and centralized data dissemination approaches in the context of traffic advisory systems. Vehicular networks are emerging as a new distributed system environment with myriad promising applications. Wirelessly-connected, GPS-equipped vehicles can be used, for instance, as probes for traffic advisory or pavement condition information services with significant improvements in cost, coverage and accuracy. There is an ongoing discussion on the pros and cons of alternative approaches to data distribution for these applications. Proposed centralized, or infrastructure-based, models rely on road-side equipment to upload information to a central location for later use. Distributed approaches take advantage of the direct exchanges between participating vehicles to achieve higher scalability at the potential cost of data consistency. While distributed solutions can significantly reduce infrastructures' deployment and maintenance costs, it is unclear what the impact of "imprecise" information is to an application or what level of adoption is needed for this model to be effective. This paper investigates the inherent trade-offs in the adoption of distributed or centralized approaches to a traffic advisory service, a commonly proposed application. We based our analysis on a measurements study of signal propagation in urban settings and an extensive simulation-based experimentation in the Chicago road network.