naa a22 4500 510791654 CHVBK 20180411083322.0 cr unu---uuuuu 180411e20130701xx s 000 0 eng 10.1007/s11277-012-0812-2 doi (NATIONALLICENCE)springer-10.1007/s11277-012-0812-2 A Water-Wave Broadcast Scheme for Emergency Messages in VANET [Elektronische Daten] [Shou-Chih Lo, Jhih-Siao Gao, Chih-Cheng Tseng] Vehicular Ad Hoc Network (VANET) is an emerging new technology and a promising platform for the intelligent transportation system. The most important application of VANET is disseminating emergency messages to drivers in case of dangerous events. The effectiveness depends on the design of a broadcast scheme. A simple broadcast scheme encounters many problems such as broadcast storm, connection hole, building shadow, and intersection problems. In this paper, we propose an efficient broadcast scheme that simulates water wave propagation to spread emergency messages. This scheme provides warning services with both space and time constraints. Most existing broadcast schemes provide inadequate strategies for limiting the time period of a warning. We verified the performance of our proposed scheme in a simulated street environment with vehicle movements to show the superiority of this scheme in high broadcast coverage areas. Springer Science+Business Media, LLC., 2012 VANET nationallicence ITS nationallicence Emergency broadcast nationallicence Carry and forward nationallicence Lo Shou-Chih Department of Computer Science and Information Engineering, National Dong Hwa University, Hualien, Taiwan, ROC aut Gao Jhih-Siao Department of Computer Science and Information Engineering, National Dong Hwa University, Hualien, Taiwan, ROC aut Tseng Chih-Cheng Department of Electrical Engineering, National Ilan University, Ilan, Taiwan, ROC aut Wireless Personal Communications Springer US; http://www.springer-ny.com 71/1(2013-07-01), 217-241 0929-6212 71:1<217 2013 71 11277 https://doi.org/10.1007/s11277-012-0812-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11277-012-0812-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Lo Shou-Chih Department of Computer Science and Information Engineering, National Dong Hwa University, Hualien, Taiwan, ROC aut NATIONALLICENCE 700 1- Gao Jhih-Siao Department of Computer Science and Information Engineering, National Dong Hwa University, Hualien, Taiwan, ROC aut NATIONALLICENCE 700 1- Tseng Chih-Cheng Department of Electrical Engineering, National Ilan University, Ilan, Taiwan, ROC aut NATIONALLICENCE 773 0- Wireless Personal Communications Springer US; http://www.springer-ny.com 71/1(2013-07-01), 217-241 0929-6212 71:1<217 2013 71 11277 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer