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Cooperative Multiterminal Radar and Communication: A New Paradigm for 6G Mobile Networks

Lamas, L. ; Castanheira, D. ; Silva, A. ; Gameiro, A. ; Hanzo, L.

IEEE Vehicular Technology Magazine Vol. 16, Nº 4, pp. 38 - 47, December, 2021.

ISSN (print): 1556-6072
ISSN (online):

Scimago Journal Ranking: 2,41 (in 2020)

Digital Object Identifier: 10.1109/MVT.2021.3114138

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Abstract
The impending spectrum congestion imposed by the emergence of new bandwidth-thirsty applications may be mitigated by the integration of radar and classic communications functionalities in a common system. Furthermore, the merger of a sensing component into wireless communication networks has raised interest in recent years and it may become a compelling design objective for 6G.
This article presents the evolution of the hitherto separate radar and communication systems towards their amalgam known as a joint radar and communication (RADCOM) system. Explicitly, we propose to integrate a radio sensing component into 6G. We consider an ultra-dense network (UDN) scenario relying on an active multistatic radar configuration and on cooperation between the access points across the entire coverage area. The technological trends required to reach a feasible integration, the applications anticipated and the open research challenges are identified, with an emphasis on high-accuracy network synchronization. The successful integration of these technologies would facilitate centimeter-level resolution, hence supporting compelling high-resolution applications for next-generation networks, such as robotic cars and industrial assembly lines.