Performance evaluation of platoon-based approaches for video dissemination in terms of quality of experience
VANETs; platoon; multimedia, QoE
Vehicular Ad-hoc NETworks (VANETs) promise a wide scope of multimedia services ranging from security and traffic announcements to entertainment and advertising videos. However, VANETs have a dynamic network topology with short contact time, which decreases the Quality of Experience (QoE) of transmitted videos due to frequent disconnections in the communication between neighbors vehicles. Live video dissemination is fundamental for services like smart-video surveillance, propagation of video in a emergency situation like an accident, and others. To mitigate those problems on VANETs, emerges a solution called platoon (platooning), where vehicles with similar interest form a platoon-driving pattern to move in same direction with similar speeds. However, most of the current approaches for platooning on VANETs does not focus in streaming of realtime videos. This master thesis make a performance evaluation in terms of QoE of two platooning approaches, one with a choosing mechanism based on game theory for video transmission with QoE support, called TJ2P, and other without a choosing mechanism with Control Cruise controller (CC) extended and modified to support video transmission, called Plexe. Simulation results confirm the efficiency of the T2JP approach, without increase the fuel consumption and CO2 emission compared to Plexe approach, and shows the importance to have a mechanism to select the best relay nodes to ensure video dissemination with adequate QoE.