Survey and Evaluation of Internet of Vehicles Connectivity Challenges

Internet of Vehicles (IoV) is a concept of the Internet of Things where things are vehicles establishing a network of cars that enable applications such as driving assistance, warning alert, collision avoidance, and road navigation. IoV applications demand connectivity quality (in terms of reliability and data-rate), which is higher than other IoT applications. Since the decision-making process has to be instantaneous, ensuring high network bandwidth, reliability, and capacity at any time become indispensable. In this paper, we survey IoV connectivity challenges and possible solutions, considering a scenario of future 5G networks. We conclude that the main challenges on IoV connectivity are latency, bandwidth, and data reliability, where latency is the most important challenge for safety-related applications, and bandwidth is the most important challenge for the non-safety-related ones. We discuss how these issues can be addressed by strategies integrating 5G networks with current V2X networks.