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Rapid advancement in wireless communication has made it possible to develop vehicular ad hoc networks, in which a vehicle can communicate with other vehicles via a wireless, multi-hop fashion. A variety of appealing real-world applications can be enabled by VANETs, such as driving safety and urban monitoring. Many location based routing algorithms have been proposed for data delivery in VANETs. Most...
Reliable delivery of emergency messages is critical for VANET safety applications. However shadowing in VANETs can cause these packets to be lost. In this paper we propose a reliable opportunistic broadcast protocol (R-OB-VAN) that overcomes this problem and maintains a high delivery ratio and low average delay. The second contribution of this work is to define a simple but realistic model of shadowing...
In vehicular ad hoc networks (VANETs), providing drivers with safety service such as the reliable delivery of an emergency message is a challenge. To propagate the emergency message quickly to all vehicles, the broadcasting technique can be utilized, however, the broadcasting is vulnerable to unreliability. In this paper, we therefore propose a scheme to improve the broadcast reliability by allowing...
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