Near-field Localization with a Reconfigurable Intelligent Surface Acting as Lens

Abu-Shaban, Z. (author)

Keykhosravi, Kamran, 1990 (author): Chalmers tekniska högskola,Chalmers University of Technology

Keskin, Furkan, 1988 (author): Chalmers tekniska högskola,Chalmers University of Technology

Alexandropoulos, G. C. (author): National and Kapodistrian University of Athens

Wymeersch, Henk, 1976 (author): Chalmers tekniska högskola,Chalmers University of Technology

(creator_code:org_t)

2021
2021
English.
In: IEEE International Conference on Communications. - 1550-3607. ; June 2021

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Abstract Subject headings

Exploiting wavefront curvature enables localization with limited infrastructure and hardware complexity. With the introduction of reconfigurable intelligent surfaces (RISs), new opportunities arise, in particular when the RIS is functioning as a lens receiver. We investigate the localization of a transmitter using a RIS-based lens in close proximity to a single receive antenna element attached to reception radio frequency chain. We perform a Fisher information analysis, evaluate the impact of different lens configurations, and propose a two-stage localization algorithm. Our results indicate that positional beamforming can lead to better performance when a priori location information is available, while random beamforming is preferred when a priori information is lacking. Our simulation results for a moderate size lens operating at 28 GHz showcased that decimeter-level accuracy can be attained within 3 meters to the lens.

TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Telekommunikation (hsv//swe)
ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Telecommunications (hsv//eng)
TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Kommunikationssystem (hsv//swe)
ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Communication Systems (hsv//eng)
TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Signalbehandling (hsv//swe)
ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Signal Processing (hsv//eng)

By the author/editor: Abu-Shaban, Z.; Keykhosravi, Kam ...; Keskin, Furkan, ...; Alexandropoulos, ...; Seco-Granados, G ...; Wymeersch, Henk, ...

About the subject

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Electrical Engin ...; and Telecommunicatio ...

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Electrical Engin ...; and Communication Sy ...

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Electrical Engin ...; and Signal Processin ...

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