P2P Computing in Design of VANET Routing Protocol

The study of peer-to-peer network and vehicle ad hoc network (VANET) are currently two hotspots in distributed computing and mobile communication researching domain. By building up a P2P overlay network on top of VANET´s physical infrastructure, we effectively integrated P2P network´s advantage on sustaining highly dynamic network into the design of VANET routing protocol. By deploying passive VANET routing algorithms with innovative P2P routing mechanisms, we propose a new kind of VANET routing protocol named Peer Computing based Ad hoc On Demand Vector (PAV). A detailed description of the P2P decentralized naming, route discovering, route querying and updating algorithm used in PAV is presented in this paper. The simulation results indicate that PAV has an improved routing performance in comparison with the popularly used AODV protocol.