A Cross-Layer Fast Handoff Protocol for vehicle communication system

The main purpose of handoff protocol is to provide high data rate and seamless supporting real-time services in the vehicle communication system. Potentially, Wireless Mesh Network (WMN) is one of the best answers to the vehicle communication system. How to provide efficient handoff protocol in the vehicle communication system is the major issue of our design. We analyzed the mathematical module of the vehicle communication system in this paper. Then considering a typical vehicle communication system, we propose a Cross-layer Fast Handoff Protocol (CFHP) which takes into account the signal strength, hops and link state. Compared with the existing AODV based handoff protocols, our protocol with fast handoff mechanism improves the system throughput and the delivery ratio significantly.