Spectrum scarcity is a challenging problem in wireless communications: high data rates are
needed to support 5G new technologies. However, the spectrum is underutilized. To …

Envisaged as the future of wireless communication systems, the next generation of
technology beyond 5G/6G will be required to handle high-mobility scenarios. However …

Sensor nodes are the building blocks of wireless sensor networks (WSNs), which may
gather, analyze, and transmit various types of information to a certain destination. Data …

In wireless communications cognitive radios are rapidly growing technology and it is used in
medical telemetry applications to provide treatment to remote located patients on time …

En este artículo se presenta una implementación combinada hardware-software de un
sistema de estimación de la dirección de arribo (DOA, por sus siglas en inglés) con súper …

In spectrum sharing systems, locating multiple radiation sources can efficiently find out the
intruders, which protects the shared spectrum from malicious jamming or other unauthorized …

This paper aims to introduce a new tool for wideband spectrum sensing in cognitive radio
applications based on the multiple signal classification (MUSIC) two-dimensional (2D) …

In wireless communications, cognitive radios are mostly used technique, in this estimation of
number of occupied channels is a problem in any signal processing, so direction of arrival is …

Next-generation wireless communication systems (beyond 5G/6G) are envisioned to support
high-mobility scenarios. The performance of traditional multicarrier waveforms such as …

An Eigen-approach method using a two-element antenna array for estimating the
frequencies of source signals jointly with the angle-of-arrival (AOA) was proposed. The …