Experimental Performance Evaluations of Reflect-Transmission Control Schemes for Vehicle-PEdestrian Communications (VPEC)

Yoshihisa OKADA  Tomotaka WADA  Masato HORIE  Fumio NAKASE  Hiromi OKADA  

IEICE TRANSACTIONS on Communications   Vol.E90-B   No.10   pp.2931-2939
Publication Date: 2007/10/01
Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e90-b.10.2931
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Integrated Systems for Communications
ITS,  IVC,  VANET,  VPEC,  reflect-transmission scheme,  CRI,  

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Inter-Vehicle Communication (IVC) is one of the most important technologies to realize advanced Intelligent Transport Systems (ITS). We extensively apply the IVC technology to the communications between pedestrians and vehicles. We call this kind of communications VPEC (Vehicle-PEdestrian Communications). The objective of this paper is to present an effective control scheme for VPEC and to evaluate the performance of proposed scheme by experiments. We deal with direct communications between pedestrians and vehicles. Due to the battery shortage of pedestrians' terminals (p-node), we have presented a reflect-transmission scheme. In this paper, we propose a new access protocol for reflect-transmission scheme, and show its validity by various experiments with several vehicles.