RIS-Aided NLoS Monostatic Sensing Under Mobility and Angle-Doppler Coupling
Paper i proceeding, 2024

We investigate the problem of reconfigurable intelligent surface (RIS)-aided monostatic sensing of a mobile target under line-of-sight (LoS) blockage considering a single-antenna, full-duplex, and dual-functional radar-communications base station (BS). For the purpose of target detection and delay/Doppler/angle estimation, we derive a detector based on the generalized likelihood ratio test (GLRT), which entails a high-dimensional parameter search and leads to angle-Doppler coupling. To tackle these challenges, we propose a two-step algorithm for solving the GLRT detector/estimator in a low-complexity manner, accompanied by a RIS phase profile design tailored to circumvent the angle-Doppler coupling effect. Simulation results verify the effectiveness of the proposed algorithm, demonstrating its convergence to theoretical bounds and its superiority over state-of-the-art mobility-agnostic benchmarks.

non-line-of-sight (NLoS) sensing

angle-Doppler coupling

monostatic sensing

Reconfigurable intelligent surfaces

Författare

Mahmut Kemal Ercan

Bilkent Universitesi

Musa Furkan Keskin

Chalmers, Elektroteknik, Kommunikation, Antenner och Optiska Nätverk

Sinan Gezici

Bilkent Universitesi

Henk Wymeersch

Chalmers, Elektroteknik, Kommunikation, Antenner och Optiska Nätverk

IEEE Wireless Communications and Networking Conference, WCNC

15253511 (ISSN)


9798350303582 (ISBN)

25th IEEE Wireless Communications and Networking Conference, WCNC 2024
Dubai, United Arab Emirates,

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Vetenskapsrådet (VR) (2022-03007), 2023-01-01 -- 2026-12-31.

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Europeiska kommissionen (EU) (101095759-Hexa-X-II), 2022-12-01 -- 2025-06-30.

Styrkeområden

Informations- och kommunikationsteknik

Ämneskategorier

Telekommunikation

Kommunikationssystem

Signalbehandling

DOI

10.1109/WCNC57260.2024.10571183

Mer information

Senast uppdaterat

2024-08-07