CAGFP: Context Aware Geocast Forwarding Protocol for Inter-Vehicle Communication

چکیده مقاله

— Timely and reliably informing the derivers about an occurred danger on a roadway seems completely critical in Intelligent Transportation Systems (ITS). Real-implementation of IVG (Inter-vehicle Geocast) as a major algorithm in this field reveals some failure due to clustering phenomena of vehicle traffic. Therefore, in this paper, we propose CAGFP (Context Aware Geocast Forwarding Protocol) which forwards safety alarms for relevant section of the road. Based on IEEE 1609 standard, beacon safety messages are periodically disseminated in the CCH (Control Channel). Therefore, in the proposed algorithm we take advantage of the broadcasted beacons in order to alleviate the problem of broadcast storm. Simulation results show low delay, less re-broadcasts and higher reception rate compared to IVG algorithm.