Schwartz, R.S. and Barbosa, R.R.R. and Meratnia, N. and Heijenk, G.J. and Scholten, J.
A directional data dissemination protocol for vehicular environments.
Computer communications, 34 (17).
*** ISI Impact 2,099 ***
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Official URL: http://dx.doi.org/10.1016/j.comcom.2011.03.007
This paper presents a simple and robust dissemination protocol that efﬁciently deals with data dissemination in both dense and sparse vehicular networks. Our goal is to address highway scenarios where
vehicles equipped with sensors detect an event, e.g., a hazard and broadcast an event message to a speciﬁc direction of interest. In order to deal with broadcast communication under diverse network densities, we design a dissemination protocol in such a way that: (i) it prevents the so-called broadcast storm problem in dense networks by employing an optimized broadcast suppression technique; and (ii) it efﬁciently deals with disconnected networks by relying on the store-carry-forward communication model. The novelty of the protocol lies in its simplicity and robustness. Simplicity is achieved by only considering two states (i.e., cluster tail and non-tail) for vehicles. Furthermore, vehicles in both directions help disseminating messages in a seamlessly manner, without resorting to different operation modes for each direction. Robustness is achieved by assigning message delivery responsibility to multiple vehicles in sparse networks. Our simulation results show that our protocol achieves higher delivery ratio and higher robustness when compared with DV-CAST under diverse road scenarios.
|Research Group:||EWI-PS: Pervasive Systems, EWI-DACS: Design and Analysis of Communication Systems|
|Research Program:||CTIT-WiSe: Wireless and Sensor Systems|
|Research Project:||iLand: Middleware for deterministic dynamically reconfigurable networked embedded systems, Connect and Drive: Cooperative Adaptive Cruise control based on WiFi communication between vehicles and infrastructure|
|Uncontrolled Keywords:||Ad-Hoc Networks, VANET, Opportunistic network, Vehicular sensor network (VSN), Dissemination Protocol|
|Deposited On:||10 October 2011|
|ISI Impact Factor:||2,099|
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