no code implementations • 26 Mar 2024 • Erik G. Larsson, Joao Vieira, Pål Frenger
We present a reciprocity calibration method for dual-antenna repeaters in wireless networks.
no code implementations • 30 Jun 2023 • Ahmet Kaplan, Joao Vieira, Erik G. Larsson
Backscatter communication (BSC) is a promising solution for Internet-of-Things (IoT) connections due to its low-complexity, low-cost, and energy-efficient solution for sensors.
no code implementations • 11 Jun 2023 • Ahmet Kaplan, Joao Vieira, Erik G. Larsson
Finally, simulation results show that the required dynamic range of the system is significantly decreased, and the detection performance of the BD symbol is increased, by the proposed algorithm compared to a system not using beamforming at the CE.
no code implementations • 11 Apr 2023 • Erik G. Larsson, Joao Vieira
Antenna arrays can be either reciprocity calibrated (R-calibrated), which facilitates reciprocity-based beamforming, or fully calibrated (F-calibrated), which additionally facilitates transmission and reception in specific physical directions.
no code implementations • 21 Aug 2017 • Joao Vieira, Erik Leitinger, Muris Sarajlic, Xuhong Li, Fredrik Tufvesson
This paper provides an initial investigation on the application of convolutional neural networks (CNNs) for fingerprint-based positioning using measured massive MIMO channels.
