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Found 14 papers, 2 papers with code
Near-field Localization with a Reconfigurable Intelligent Surface Acting as Lens
Exploiting wavefront curvature enables localization with limited infrastructure and hardware complexity.
Signal Processing Information Theory Information Theory
SISO RIS-Enabled Joint 3D Downlink Localization and Synchronization
We consider the problem of joint three-dimensional localization and synchronization for a single-input single-output (SISO) system in the presence of a reconfigurable intelligent surface (RIS), equipped with a uniform planar array.
Signal Processing Information Theory Information Theory
Semi-Passive 3D Positioning of Multiple RIS-Enabled Users
In this work, we study the application of RIS in a multi-user passive localization scenario, where we have one transmitter (Tx) and multiple asynchronous receivers (Rxs) with known locations.
Multi-RIS Discrete-Phase Encoding for Interpath-Interference-Free Channel Estimation
We take into consideration the limited resolution of the RIS phase shifters and show that in the presence of this practical limitation, orthogonal phase profiles can be designed based on Butson-type Hadamard matrices.
Beyond 5G RIS mmWave Systems: Where Communication and Localization Meet
Upcoming beyond fifth generation (5G) communications systems aim at further enhancing key performance indicators and fully supporting brand new use cases by embracing emerging techniques, e. g., reconfigurable intelligent surface (RIS), integrated communication, localization, and sensing, and mmWave/THz communications.
RIS-Enabled Localization Continuity Under Near-Field Conditions
Reconfigurable intelligent surfaces (RISs) have the potential to enable user localization in scenarios where traditional approaches fail.
RIS-Enabled Self-Localization: Leveraging Controllable Reflections With Zero Access Points
In this paper, we introduce a novel use-case of the RIS technology in radio localization, which is enabling the user to estimate its own position via transmitting orthogonal frequency-division multiplexing (OFDM) pilots and processing the signal reflected from the RIS.
Constrained RIS Phase Profile Optimization and Time Sharing for Near-field Localization
The rising concept of reconfigurable intelligent surface (RIS) has promising potential for Beyond 5G localization applications.
Arbitrary Beam Pattern Approximation via RISs with Measured Element Responses
Smart radio environments (SREs) are seen as a key rising concept of next generation wireless networks, where propagation channels between transmitters and receivers are purposely controlled.
Leveraging RIS-Enabled Smart Signal Propagation for Solving Infeasible Localization Problems
Reconfigurable intelligent surfaces (RISs) have tremendous potential for both communication and localization.
Bi-Static Sensing for Near-Field RIS Localization
Due to the deployment of RISs with a large dimension, near-field (NF) scenarios are likely to occur, especially for indoor applications, and are the focus of this work.
RIS-Enabled SISO Localization under User Mobility and Spatial-Wideband Effects
Specifically, we observe that the state of the user with a high speed (42 m/s) can be estimated virtually with the same accuracy as a static user.
RIS-Enabled and Access-Point-Free Simultaneous Radio Localization and Mapping
In the upcoming sixth generation (6G) of wireless communication systems, reconfigurable intelligent surfaces~(RISs) are regarded as one of the promising technological enablers, which can provide programmable signal propagation.
Performance of RIS-Aided Nearfield Localization under Beams Approximation from Real Hardware Characterization
The technology of reconfigurable intelligent surfaces (RIS) has been showing promising potential in a variety of applications relying on Beyond-5G networks.
