A Geocast Based Routing for Cooperative Video Streaming Over Vehicular Networks

Abstract

A typical Mobile Ad Hoc Network, in which automobiles serve as hubs, is the Vehicular Ad Hoc Network (VANET). The VANETs have numerous applications such as traffic warning distribution, live data communication technologies, video stream services, file share services etc. Due to the high mobility and complex evolving topology, an appropriate routing protocol is mandatory to ensure secure and efficient connectivity between vehicles. The multimedia streaming service on VANET is a challenging task due to the highly mobile environment. Also, concerning multimedia streaming networks, each vehicle’s data download volume is minimal due to limited network connectivity. It takes far more period to stream a high-definition video using a single cellular 3G/3.5G interface. This work considers a shared video streaming situation where a vehicle fleet exchanges its network resources on their journey. This paper analyses the feasibility for applying the Geo-TORA routing protocol in Multimedia streaming-based VANET. The protocol consists of a geo cast service for sending messages to everyone in a specified geographical region. This protocol effectiveness is assessed using the metric routing overhead, geo cast packets’ precision, and end to end delay. The study shows that Geo TORA has significant improvement in this scenario, compared to the Temporally Ordered Routing Algorithm (TORA) protocol considering the metrics mentioned above.