Title: Wireless multihop communication in sparse Vehicular Ad-Hoc Networks

Authors: Hiroaki Oka, Hiroaki Higaki

Addresses: Department of Computers and Systems Engineering, Tokyo Denki University, Hatoyama Ishizaka, Hiki, Saitama 3500394, Japan. ' Department of Robotics and Mechatronics, Tokyo Denki University, Hatoyama Ishizaka, Hiki, Saitama 3500394, Japan

Abstract: In Intelligent Transport System (ITS), multiple vehicular mobile nodes cooperate through a wireless communication network. Here, data messages are transmitted along a multihop route with help of intermediate nodes. In an area with sparsely distributed nodes, mobility of a node carrying data messages also helps to achieve higher transmission ratio. This paper proposes a method for message transmission along a sequence of street segments detected by a GPS satellite navigation system. Due to combination of dynamic determination of intermediate nodes and a store-carry-forward method, higher transmission ratio and shorter end-to-end transmission delay are achieved even with high mobility and sparse distribution of nodes.

Keywords: VANET; vehicle ad-hoc networks; wireless multihop transmission; ad-hoc routing; store-carry-forward; wireless networks; intelligent transport systems; ITS; GPS navigation; global positioning systems; vehicle communications.

DOI: 10.1504/IJIPT.2009.027336

International Journal of Internet Protocol Technology, 2009 Vol.4 No.2, pp.115 - 125

Published online: 20 Jul 2009 *

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