Um Algoritmo Autonómico para Disseminação de Dados em Redes Ad Hoc Veciulares (An Autonomic Algorithm for Data Dissemination in Vehicular Ad Hoc Networks)

Rodolfo Meneguette (meneguette@ifsp.edu.br)1, Leandro Villas (leandro@ic.unicamp.br)2


1Instituto Federal de São Paulo
2Universidade Estadual de Campinas

This paper appears in: Revista IEEE América Latina

Publication Date: May 2014
Volume: 12,   Issue: 3 
ISSN: 1548-0992


Abstract:
A Vehicular Ad Hoc Network (VANET) is a subclass of Mobile Ad Hoc Networks, which provides wireless communication among vehicles as well as between vehicles and roadside units. Providing safety, traffic efficiency and user comfort for drivers and passengers are promising goals of these networks. Due to some inherent characteristics of VANETs, such as intermittent connectivity, highly dynamic topology, and diverse network densities, data dissemination is a challenging activity in this kind of network. Although data dissemination has been extensively studied in the literature, existing solutions do not effectively address the broadcast storm and network partition problems when considered together. To deal with both problems, we propose a network partition-aware geographical data dissemination protocol, which eliminates the broadcast storm and maximizes the data dissemination capability across network partitions with short delays and low overhead. The proposed algorithm is able to autonomically adjust message transmissions in the network. Simulation results show that our proposed approach provides good efficiency with respect to thecoverage of event processing, delay and overhead.

Index Terms:
Vehicular Network, Data Dissemination   


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