RISs and Sidelink Communications in Smart Cities: The Key to Seamless Localization and Sensing
Artikel i vetenskaplig tidskrift, 2023

A smart city involves, among other elements, intelligent transportation, crowd monitoring, and digital twins, each of which requires information exchange via wireless communication links and localization of connected devices and passive objects (including people). Although localization and sensing (L&S) are envisioned as core functions of future communication systems, they have inherently different demands in terms of infrastructure compared to communications. Wireless communications generally requires a connection to only a single access point (AP), while L&S demand simultaneous line-of-sight propagation paths to several APs, which serve as location and orientation anchors. Hence, a smart city deployment optimized for communication will be insufficient to meet stringent L&S requirements. In this article, we argue that the emerging technologies of reconfigurable intelligent surfaces (RISs) and sidelink communications constitute the key to providing ubiquitous coverage for L&S in smart cities with low-cost and energy-efficient technical solutions. To this end, we propose and evaluate AP-coordinated and self-coordinated RIS-enabled L&S architectures and detail three groups of application scenarios, relying on low-complexity beacons, cooperative localization, and full-duplex transceivers. A list of practical issues and consequent open research challenges of the proposed L&S systems is also provided.

Författare

Hui Chen

Chalmers, Elektroteknik, Kommunikation, Antenner och Optiska Nätverk

Hyowon Kim

Chalmers, Elektroteknik, Kommunikation, Antenner och Optiska Nätverk

Mustafa Ammous

University of Toronto

G. Seco-Granados

Universitat Autonoma de Barcelona (UAB)

G. C. Alexandropoulos

University of Athens

Shahrokh Valaee

University of Toronto

Henk Wymeersch

Chalmers, Elektroteknik, Kommunikation, Antenner och Optiska Nätverk

IEEE Communications Magazine

0163-6804 (ISSN) 15581896 (eISSN)

Vol. 61 8 140-146

Reconfigurable Intelligent Sustainable Environments for 6G Wireless Networks

Europeiska kommissionen (EU) (EC/2020/101017011), 2021-01-01 -- 2023-12-31.

Integrated Sensing, Localization, and Communications in 6G THz Systems

Europeiska kommissionen (EU) (101065422-6G-ISLAC), 2023-01-01 -- 2024-12-31.

Styrkeområden

Informations- och kommunikationsteknik

Ämneskategorier

Telekommunikation

Kommunikationssystem

Inbäddad systemteknik

DOI

10.1109/MCOM.001.2200970

Mer information

Senast uppdaterat

2023-12-25