Mitigating broadcast storm in interest/data packet forwarding in vehicular content centric networking
Hafsa Maryam, Abdul Wahid, Munam Ali Shah · 2017
Vehicular Content-Centric Networks (VCCN) has been proposed and emerged as an upcoming Internet technology for the Vehicular Ad-hoc Networks (VANETs). However, VCCN architecture faces many challenges including Consumer/Provider mobility, Flooding, Interest/Data packet forwarding, Forwarding selection and Congestion control. Consumer vehicle broadcasts (i.e., requests) the interest packet. Relay nodes vehicles receiving this interest packet and performs search (Content Storage, Pending Interest Table and Forward Interest Base) operations on it and then rebroadcasts the interest message in case of no content match. These search (Content Storage, Pending Interest Table, and Forward Interest Base) operations cause delay and duplication's of interest packets. In our paper, we propose a routing protocol scheme named Intersection Based Forwarder Selection (IBFS) to mitigate the interest broadcast storm and disconnected link within the network. In IBFS, each vehicle shares its trajectory information with its neighboring vehicles. All vehicles store/save trajectory information in its Neighbor Table (NT), which helps to select the best interest relay/forwarder vehicle on the basis of matching trajectory information with the consumer vehicle. We have also considered the other metrics i.e. velocity and hop count. IBFS protocol overcomes the end-to-end delay (low latency), ISD (Interest Satisfaction Delay), communication overheads and minimum number of interest forwarded with the reliable interest and data packet transmission.