VDTN Layered Architecture

This paper provides an introductory overview of Vehicular Delay-Tolerant Networks and its layer Architecture with function of each layer. First, an introduction of Delay-Tolerant Networks and Vehicular Delay-Tolerant Networks is given. Where there is no end to end connectivity or network connectivity is sparse or variable density area, at that place Delay-Tolerant schemes and protocol help by providing communication solution for non real time application. Vehicular Delay-Tolerant Networks (VDTNs) are a new approach for vehicular communications where vehicles cooperate with each other, acting as the communication infrastructure, to provide low-cost asynchronous opportunistic communications. These communication technologies assume variable delays and bandwidth constraints characterized by a non-transmission control protocol/internet protocol architecture but interacting with it at the edge of the network. VDTNs are based on the principle of asynchronous communications, bundleoriented communication from the DTN architecture, employing a store-carry-and-forward routing paradigm. VDTN network provide IP over DTN.