Emergency Content Routing and Dissemination Based on Vehicular Named Data Networking

Road-safety content routing and dissemination through connected vehicles significantly enhance autonomous driving safety and efficiency. This paper proposes a hybrid emergency content routing and dissemination framework for autonomous driving, aiming to alleviate fresh content dissemination latency and improve success rates. The main ideas behind the framework are twofold: 1) Leverage content attributes to ensure freshness of cached contents, and 2) Exploit inter-vehicle attributes to enhance the stability of dissemination paths where fresh contents are pushed and pulled, achieving rapid access to contents. According to the experimental results, the fresh content access latency and cost are reduced by nearly 21.41% and 26.18%, and the success rate is improved by nearly 7.9%.