Mobility and Content Retrieval in Vehicular Named Data Network: Challenges and Countermeasures

In the ecosystem of connected vehicles, the TCP/IP stack serves a significant role in terms of content dissemination, traffic control, and assignment of vehicle address. Recently, the Internet of Vehicles (IoV) has emerged drastically. Primarily, information sharing between vehicles is carried out for road safety, location sharing, hazard warning, and infotainment services. The traditional TCP/IP model is not appropriate for the transmission of bulky data in this dense and highly dynamic environment. Recently, a Vehicular Named Data Networking (VNDN) approach has been used for efficient information sharing between vehicles. Unlike currently used TCP/IP internet architecture, vehicles demand data in the form of Interest packet and disseminate requested data in a pull-based fashion. Interest packets need to be broadcasted to the potential data producers. Although, with the advent of VNDN, many challenges of IoV have been resolved; however, mobility and content retrieval are still major concerns that may lead to the problem of packet broadcast storm. In this paper, we discussed the major contributions that have been done to eliminate vehicle mobility and content retrieval issues in the VNDN paradigm. Besides, we mention the limitations of the proposed existing solutions implemented in the VNDN scenario. Furthermore, based on existing proposed solutions, we highlight the new challenges and directions for the design of new solutions.