naa a22 4500 510795277 CHVBK 20180411083334.0 cr unu---uuuuu 180411e20130301xx s 000 0 eng 10.1007/s11277-012-0594-6 doi (NATIONALLICENCE)springer-10.1007/s11277-012-0594-6 Computer Simulations of VANETs Using Realistic City Topologies [Elektronische Daten] [Francisco Martinez, Manuel Fogue, C. Toh, Juan-Carlos Cano, Carlos Calafate, Pietro Manzoni] Researchers in vehicular ad hoc networks (VANETs) commonly use simulation to test new algorithms and techniques. This is the case because of the high cost and labor involved in deploying and testing vehicles in real outdoor scenarios. However, when determining the factors that should be taken into account in these simulations, some factors such as realistic road topologies and presence of obstacles are rarely addressed. In this paper, we first evaluate the packet error rate (PER) through actual measurements in an outdoor road scenario, and deduce a close model of the PER for VANETs. Secondly, we introduce a topology-based visibility scheme such that road dimension and geometry can be accounted for, in addition to line-of-sight. We then combine these factors to determine when warning messages (i.e., messages that warn drivers of danger and hazards) are successfully received in a VANET. Through extensive simulations using different road topologies, city maps, and visibility schemes, we show these factors can impact warning message dissemination time and packet delivery rate. Springer Science+Business Media, LLC., 2012 Vehicular ad hoc networks nationallicence Attenuation and visibility schemes nationallicence VANET simulation nationallicence City maps nationallicence Martinez Francisco University of Zaragoza, Teruel, Spain aut Fogue Manuel University of Zaragoza, Teruel, Spain aut Toh C. National Tsing Hua University, Hsinchu, Taiwan aut Cano Juan-Carlos Universitat Politècnica de València, Valencia, Spain aut Calafate Carlos Universitat Politècnica de València, Valencia, Spain aut Manzoni Pietro Universitat Politècnica de València, Valencia, Spain aut Wireless Personal Communications Springer US; http://www.springer-ny.com 69/2(2013-03-01), 639-663 0929-6212 69:2<639 2013 69 11277 https://doi.org/10.1007/s11277-012-0594-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11277-012-0594-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Martinez Francisco University of Zaragoza, Teruel, Spain aut NATIONALLICENCE 700 1- Fogue Manuel University of Zaragoza, Teruel, Spain aut NATIONALLICENCE 700 1- Toh C. National Tsing Hua University, Hsinchu, Taiwan aut NATIONALLICENCE 700 1- Cano Juan-Carlos Universitat Politècnica de València, Valencia, Spain aut NATIONALLICENCE 700 1- Calafate Carlos Universitat Politècnica de València, Valencia, Spain aut NATIONALLICENCE 700 1- Manzoni Pietro Universitat Politècnica de València, Valencia, Spain aut NATIONALLICENCE 773 0- Wireless Personal Communications Springer US; http://www.springer-ny.com 69/2(2013-03-01), 639-663 0929-6212 69:2<639 2013 69 11277 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer