IDDS: An ICN based Data Dissemination Scheme for Vehicular Networks

Internet of Vehicles (IoV) have been attracting increasing interests in recent years, targeting to support services between vehicles or vehicles and infrastructures involving driving safety, traffic and infotainment. However, the dynamic nature of IoV make it quite challenging by applying traditional TCP/IP protocol stack, considering the complex signaling and addressing procedure of TCP/IP as well as the strict End-to-End service requirements in vehicular environment. To address these issues, an information centric data dissemination scheme (IDDS) in IoV is proposed. At first, the framework of our IDDS is introduced with the PDU (Protocol Data Unit) type, data structure and protocol signaling procedure given. After that, to increase the data delivery ratio and reduce the incurred latency, a defer time based forwarder selection scheme is presented, with which the “Interest” and “Reply” packets could be exchanged on the link with better transmission performance, thus mitigating the negative impact of high mobility of vehicles. Simulation results show that IDDS could outperforms some traditional strategies in terms of average hop count and content acquisition delay, thus significantly increasing the data dissemination efficiency in vehicular information-centric networks.