Joint use of DSRC and C‐V2X for V2X communications in the 5.9 GHz ITS band

• Published in: IET intelligent transport systems Vol. 15; no. 2; pp. 213 - 224
• Main Author: Ansari, Keyvan
• Format: Journal Article
• Language: English
• Published: Wiley 01-02-2021
• Subjects: Legislation, frequency allocation and spectrum pollution; Mobile radio systems; Radiowave propagation
• ISSN: 1751-956X; 1751-9578
• DOI: 10.1049/itr2.12015

Vehicular communications networks form the backbone of cooperative intelligent transport systems to support road safety and infotainment applications amongst users. IEEE 802.11p of the Dedicated Short‐Range Communications protocol stack has been the technology of choice for Vehicle‐to‐Everything communications within the United States and Japan and has been extensively trailed in other countries such as Australia. With the advent of cellular technologies, a new, competing cellular‐based Device‐to‐Device technology, known as Cellular Vehicle‐to‐Everything Sidelink, has emerged. Considering both technologies suffer from performance limitations, there is a current debate as to which of these technologies will eventually dominate the cooperative intelligent transport systems landscape if they cannot coexist. To investigate mechanisms of spectrum sharing between Dedicated Short‐Range Communications and Cellular Vehicle‐to‐Everything for deployment in a common region, this paper initially reviews the background and technicalities of both technologies. The paper subsequently sets forth Vehicle‐to‐Everything platform models that allow not only spectrum sharing at the ITS band but also concurrent and simultaneous propagations of Dedicated Short‐Range Communications and Cellular Vehicle‐to‐Everything messages. The transmission and reception mechanisms of hybrid Vehicle‐to‐Everything platforms are verified through a describing function model.