Abstract
Due to the high speed of vehicles in vehicular adhoc networks (VANETs), a frequent out of range area termed as uncoverage area between two neighboring road side units (RSUs) occurs. In such an uncoverage area, the reachability of the requested contents or data to vehicles is minimized due to the non-established connection between vehicles and RSUs. To maintain connectivity in an uncoverage area, various relay vehicles (RVs) selection schemes have been proposed. In this paper, a cluster-based optimal relay vehicle (CORV) selection scheme is proposed in which firstly, cluster and cluster heads (CHs) are formed and then RVs are selected depending upon remaining connection time, range, and location of vehicle. And then requested data is forwarded to DVs, which was not forwarded to vehicles in coverage area. The simulation results depict that the proposed scheme is able to retrieve maximum amount of requested contents or data in an uncoverage area by vehicles.
Published Version
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