RIS-Aided NLoS Monostatic Sensing Under Mobility and Angle-Doppler Coupling
Paper in 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

Author

Mahmut Kemal Ercan

Bilkent University

Musa Furkan Keskin

Chalmers, Electrical Engineering, Communication, Antennas and Optical Networks

Sinan Gezici

Bilkent University

Henk Wymeersch

Chalmers, Electrical Engineering, Communication, Antennas and Optical Networks

IEEE Wireless Communications and Networking Conference, WCNC

15253511 (ISSN)


9798350303582 (ISBN)

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

Hardware-aware Integrated Localization and Sensing for Communication Systems

Swedish Research Council (VR) (2022-03007), 2023-01-01 -- 2026-12-31.

A holistic flagship towards the 6G network platform and system, to inspire digital transformation, for the world to act together in meeting needs in society and ecosystems with novel 6G services

European Commission (EC) (101095759-Hexa-X-II), 2022-12-01 -- 2025-06-30.

Areas of Advance

Information and Communication Technology

Subject Categories

Telecommunications

Communication Systems

Signal Processing

DOI

10.1109/WCNC57260.2024.10571183

More information

Latest update

8/7/2024 7