Propagation Characteristics of 60-GHz Millimeter Waves for ITS Inter-Vehicle Communications

Akihito KATO  Katsuyoshi SATO  Masayuki FUJISE  Shigeru KAWAKAMI  

IEICE TRANSACTIONS on Communications   Vol.E84-B    No.9    pp.2530-2539
Publication Date: 2001/09/01
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Innovation in Antennas and Propagation for Expanding Radio Systems)
Category: Propagation
propagation,  millimeter wave,  inter-vehicle communication,  two-ray propagation model,  probability distribution,  

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We have experimentally measured the propagation characteristics of 60-GHz-band millimeter wave between two vehicles to design of inter-vehicle communication (IVC) system in intelligent transport systems (ITS). Received power and bit error rates of 1-Mbps data transmission between a transmitter mounted on a leading vehicle and two receivers attached on a following vehicle were measured. A two-ray propagation model was devised to calculate the instantaneous propagation characteristics, and these estimations agree well with the measured characteristics. The feasibility of 1-Mbps data transmission between the running vehicles on an actual expressway was demonstrated. The cumulative distribution of received power between the two running vehicles when their height from the road surface fluctuated was also determined from the proposed two-ray propagation model and experimental measurements.