QoE-Aware Routing for Video Streaming over VANETs

In-vehicle multimedia applications are gaining interest since recent years. However, the high loss rate caused by high mobility in vehicular ad-hoc networks (VANETs) imposes several challenges in multimedia transmission. Moreover, in the context of multimedia, the quality of service (QoS)-based approaches assess the quality of streaming services through network-oriented metrics while the concept of quality of experience (QoE) is built upon the perception of users. Consequently, adopting QoE metric to control multimedia streams in VANETs is interesting and relevant. In this paper, a QoE-based routing protocol for video streaming over VANETs is proposed. By taking the mean opinion score (MOS) into account for path selection, a better performance can be achieved. Simulation results demonstrate how the proposed scheme improves the performance of video streaming applications in VANETs.