iCAR-II: Infrastructure-Based Connectivity Aware Routing in Vehicular Networks

With the high demand of mobile Internet services, vehicular ad hoc networks (VANETs) have become a promising technology to enable vehicular Internet access. However, the development of a reliable routing protocol to route data packets between vehicles and infrastructure gateways is still a challenging task due to the high mobility and frequent changes of the network topology. The conventional position-based routing (PBR) in VANETs can neither guarantee the existence of a routing path between the source and the destination prior to the transmission nor provide connection duration information, which makes it unsuitable to route Internet packets. In this paper, the authors propose a novel infrastructure-based connectivity aware routing protocol called iCAR-II that enables multihop vehicular applications, as well as mobile data offloading and Internet-based services. iCAR-II consists of a number of algorithms triggered and run by vehicles to predict local network connectivity and update location servers with real-time network information, in order to construct a global network topology. By providing real-time connectivity awareness, iCAR-II improves the routing performance in VANETs by dynamically selecting routing paths with guaranteed connectivity and reduced delivery delay. Detailed analysis and simulation-based evaluations of iCAR-II demonstrate the validity of using VANETs for mobile data offloading and the significant improvement of VANETs performance in terms of packet delivery ratio and end to end delay.

Language

  • English

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Filing Info

  • Accession Number: 01638498
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jun 23 2017 11:40AM