RDAP: Requested data accessibility protocol for Vehicular Sensor Networks

Vehicular Sensor Networks (VSNs) are a new emerging technology where sensor devices are deployed in the road side and in the vehicles to sense and transmit information to users, providing safe, efficient and comfort for roads users. One of the VSNs challenges is how to deal with dynamic data collection. To achieve this, an efficient collaboration between sensors and vehicles is required. This paper proposes a new multi-hop data collection and dissemination scheme based on data replication on VSNs in an urban scenario. The aim of our proposal scheme is to achieve high data accessibility with a low latency and communication overhead. The simulation results show the advantages of the proposed scheme.