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Full-Duplex Relay for Millimeter Wave Vehicular Platoon Communications

by 1 and 2,*
1
School of Electronic Engineering, Soongsil University, Seoul 06978, Korea
2
School of Electrical Engineering, University of Ulsan, Ulsan 44610, Korea
*
Author to whom correspondence should be addressed.
Sensors 2020, 20(21), 6072; https://doi.org/10.3390/s20216072
Received: 14 August 2020 / Revised: 28 September 2020 / Accepted: 22 October 2020 / Published: 26 October 2020
(This article belongs to the Section Communications)
The safety and consistency of platoon-based driving are guaranteed via reliable communication between vehicles in a platoon. In this paper, we propose to exploit a full-duplex (FD) relay vehicle for millimeter-wave vehicular communications in platoon-based driving. Considering that a lead vehicle broadcasts information to all vehicles in a platoon, we consider two power allocation problems—maximizing broadcast information rates with a power constraint and minimizing power consumption with a quality-of-service constraint. In particular, for a four-vehicle platoon communication, we derive closed-form solutions for optimal power allocation and present numerical results to verify the performance of the proposed FD relay vehicles. View Full-Text
Keywords: vehicle communication; platoon; millimeter wave; full-duplex; power allocation vehicle communication; platoon; millimeter wave; full-duplex; power allocation
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MDPI and ACS Style

Lee, J.-H.; Song, J. Full-Duplex Relay for Millimeter Wave Vehicular Platoon Communications. Sensors 2020, 20, 6072.

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