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Towards mmWave V2X in 5G and Beyond to Support Automated Driving
Kei SAKAGUCHI Ryuichi FUKATSU Tao YU Eisuke FUKUDA Kim MAHLER Robert HEATH Takeo FUJII Kazuaki TAKAHASHI Alexey KHORYAEV Satoshi NAGATA Takayuki SHIMIZU
IEICE TRANSACTIONS on Communications
Publication Date: 2021/06/01
Online ISSN: 1745-1345
Type of Manuscript: INVITED SURVEY PAPER
Category: Terrestrial Wireless Communication/Broadcasting Technologies
automated driving, cooperative perception, V2X, V2V, IEEE802.11p, LTE-V2X, millimeter-wave, 5G, IEEE802.11ad/bd, NR-V2X,
Full Text: FreePDF
Millimeter wave provides high data rates for Vehicle-to-Everything (V2X) communications. This paper motivates millimeter wave to support automated driving and begins by explaining V2X use cases that support automated driving with references to several standardization bodies. The paper gives a classification of existing V2X standards: IEEE802.11p and LTE V2X, along with the status of their commercial deployment. Then, the paper provides a detailed assessment on how millimeter wave V2X enables the use case of cooperative perception. The explanations provide detailed rate calculations for this use case and show that millimeter wave is the only technology able to achieve the requirements. Furthermore, specific challenges related to millimeter wave for V2X are described, including coverage enhancement and beam alignment. The paper concludes with some results from three studies, i.e. IEEE802.11ad (WiGig) based V2X, extension of 5G NR (New Radio) toward mmWave V2X, and prototypes of intelligent street with mmWave V2X.