First look: South Korea's Electronics and Telecommunications Research Institute has reported a milestone in underground communications, demonstrating wireless data transmission 100 meters (328 feet) ...

Announcing a new publication from Opto-Electronic Advances; DOI 10.29026/oea.2026.250229. Programmable metasurface (PM), also termed as reconfigurable intelligent surface (RIS), have emerged as a ...

In this tutorial, we explore how we can seamlessly run MATLAB-style code inside Python by connecting Octave with the oct2py library. We set up the environment on Google Colab, exchange data between ...

Abstract: This paper presents the performance evaluation of phase shift keying technique modulation such as BPSK and QPSK using error correcting code. Three error ...

ABSTRACT: This study introduces a Hybrid Bimodal Model for Analog-to-Digital (ADC) and Digital-to-Analog (DAC) signal conversions, addressing limitations of traditional systems, such as inefficiencies ...

The system consists of two main components: TX (Transmitter): Encapsulates file data into framed packets, adds metadata headers, applies QPSK modulation, and transmits via SDR. An ADI PlutoSDR (AD9363 ...

Semtech LR2021, the first chip in the LoRa Plus family, supports LoRa Gen 4 technology with both terrestrial and satellite networks in the Sub-GHz, 2.4 GHz ISM bands, and licensed S-band, while ...