Search Results for author: Riku Jäntti

Found 8 papers, 1 papers with code

Generative AI for Immersive Communication: The Next Frontier in Internet-of-Senses Through 6G

no code implementations2 Apr 2024 Nassim Sehad, Lina Bariah, Wassim Hamidouche, Hamed Hellaoui, Riku Jäntti, Mérouane Debbah

Over the past two decades, the Internet-of-Things (IoT) has been a transformative concept, and as we approach 2030, a new paradigm known as the Internet of Senses (IoS) is emerging.

Zero-energy Devices for 6G: Technical Enablers at a Glance

no code implementations14 Feb 2024 Onel López, Ritesh Kumar Singh, Dinh-Thuy Phan-Huy, Efstathios Katranaras, Nafiseh Mazloum, Riku Jäntti, Hamza Khan, Osmel Rosabal, Pavlos Alexias, Prasoon Raghuwanshi, David Ruiz-Guirola, Bikramjit Singh, Andreas Höglund, Dung Pham Van, Amirhossein Azarbahram, Jeroen Famaey

Low-cost, resource-constrained, maintenance-free, and energy-harvesting (EH) Internet of Things (IoT) devices, referred to as zero-energy devices (ZEDs), are rapidly attracting attention from industry and academia due to their myriad of applications.

Management Scheduling

RIS Position and Orientation Estimation via Multi-Carrier Transmissions and Multiple Receivers

no code implementations15 Nov 2023 Reza Ghazalian, Hui Chen, George C. Alexandropoulos, Gonzalo Seco-Granados, Henk Wymeersch, Riku Jäntti

In this paper, we consider a static user equipped with an RIS and study the RIS localization problem (i. e., joint three-dimensional position and orientation estimation), when operating in a system comprising a single-antenna transmitter and multiple synchronized single-antenna receivers with known locations.

Position

Joint User Localization and Location Calibration of A Hybrid Reconfigurable Intelligent Surface

no code implementations18 Oct 2022 Reza Ghazalian, Hui Chen, George C. Alexandropoulos, Gonzalo Seco-Granados, Henk Wymeersch, Riku Jäntti

The recent research in the emerging technology of reconfigurable intelligent surfaces (RISs) has identified its high potential for localization and sensing.

Position

Bi-Static Sensing for Near-Field RIS Localization

no code implementations28 Jun 2022 Reza Ghazalian, Kamran Keykhosravi, Hui Chen, Henk Wymeersch, Riku Jäntti

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.

Position

Channel Model Mismatch Analysis for XL-MIMO Systems from a Localization Perspective

1 code implementation30 May 2022 Hui Chen, Ahmed Elzanaty, Reza Ghazalian, Musa Furkan Keskin, Riku Jäntti, Henk Wymeersch

Radio localization is applied in high-frequency (e. g., mmWave and THz) systems to support communication and to provide location-based services without extra infrastructure.

Optimum Multi-Antenna Ambient Backscatter Receiver for General Binary-Modulated Signal

no code implementations21 Aug 2020 Xiyu Wang, Hüseyin Yiğitler, Riku Jäntti

Efforts have been put into backscatter signal detection as the detection performance is limited by the low signal-to-interference-plus-noise ratio (SINR) of the signal at the receiver.

Coherent Multi-antenna Receiver for BPSK-modulated Ambient Backscatter Tags

no code implementations21 Aug 2020 Xiyu Wang, Hüseyin Yiğitler, Ruifeng Duan, Estifanos Yohannes Menta, Riku Jäntti

The performance of the proposed receiver is compared with the ideal coherent receiver that has a perfect phase information, and also with the performance of non-coherent receiver, which assumes distributions for ambient signal and phase offset caused by excess length of the backscatter path.

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