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22676 Fair and adaptive data dissemination for traffic information systems
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Schwartz, R.S. and Ohazulike, A.E. and Sommer, C. and Scholten, J. and Dressler, F. and Havinga, P.J.M. (2012) Fair and adaptive data dissemination for traffic information systems. In: Fourth IEEE Vehicular Networking Conference (VNC 2012), 14-16 Nov 2012, Seoul, South Korea. pp. 1-8. IEEE Intelligent Transportation Systems Society. ISSN 2157-9857 ISBN 978-1-4673-4995-6

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Vehicular Ad-hoc Networks (VANETs) are expected to serve as support to the development of not only safety applications but also information-rich applications that disseminate relevant data to vehicles. Due to the continuous collection, processing, and dissemination of data, one crucial requirement is the efficient use of the available bandwidth. Firstly, the rate of message transmissions must be properly controlled in order to limit the amount of data inserted into the network. Secondly, messages must be carefully selected to maximize the utility (benefit) gain of vehicles in the neighborhood. We argue that such selection must aim at a fair distribution of data utility, given the possible conflicting data interests among vehicles. In this work, we propose a data dissemination protocol for VANETs that distributes data utility fairly over vehicles while adaptively controlling the network load. The protocol relies only on local knowledge to achieve fairness with concepts of Nash Bargaining from game theory. Simulation results show that our algorithm presents a higher fairness index and yet it maintains a high level of bandwidth utilization efficiency compared to other approaches. In addition, the rate of transmissions is adaptively controlled as new information about the environment is collected.

Item Type:Conference or Workshop Paper (Full Paper, Talk)
Research Group:EWI-PS: Pervasive Systems, CTW-CTS: Centre for Transport Studies, EWI-DMMP: Discrete Mathematics and Mathematical Programming
Research Program:CTIT-WiSe: Wireless and Sensor Systems
Research Project:iLand: Middleware for deterministic dynamically reconfigurable networked embedded systems, SI4MS: Sensor Intelligence For Mobility Systems
Uncontrolled Keywords:Vehicular Ad-hoc Networks (VANETs), Traffic Information Systems, Data Dissemination, Data Utility, Fairness
ID Code:22676
Deposited On:21 December 2012
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