Improving QoE in IoV: a review of solutions and challenges for MPEG-DASH

The deployment of video streaming in an Internet of Vehicles (IoV) context enhances both driving comfort and road safety. Video transmission provides clear and informative perspectives, offering a wide range of entertainment and infotainment, including details on restaurants, parking, and tourist attractions. However, maintaining a satisfactory quality of experience (QoE) in an IoV environment, which is characterized by fluctuating bandwidth and changing topology, presents a significant challenge. Furthermore, traffic parameters such as vehicle speed negatively impact video quality. This paper reviews various solutions proposed in the literature to optimize the MPEG-DASH (Dynamic Adaptive Streaming over HTTP) protocol in an IoV environment. The objective is to dynamically adjust video quality based on available resources to enhance QoE. Additionally, this review identifies key areas that researchers should focus on to improve this protocol. We highlight also the important challenges for our future contributions.