Channel Quality Improvement by Inter-Vehicle Packet Relay in Road Vehicle Communication Systems

Takayuki YAMADA  Ryoichi SHINKUMA  Tatsuro TAKAHASHI  

IEICE TRANSACTIONS on Communications   Vol.E90-B    No.2    pp.425-428
Publication Date: 2007/02/01
Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e90-b.2.425
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Terrestrial Radio Communications
road-vehicle communication,  inter-vehicle communication,  relative mobile speed,  Doppler shift,  

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In road-vehicle communication systems, the transmission rate between user terminals in the vehicle and the access points degrades due to changing path-loss and time-varying fading. In this paper, we used an inter-vehicle packet relay technique to improve channel quality in road-vehicle communication systems. We evaluated this method using numerical analysis to validate our method.