In this paper we present a new method for White Spaces estimation on a geographical
region. The method is based on a low-cost signal sensors network, distributed in the areas …

The enormous increase in the number of mobile devices, combined with the stationary
handling of frequency bands, has resulted in a lack of accessible available bandwidth [1] …

Massive machine-type communications (mMTC) face spectrum scarcity problems at 5G mid-
bands (ie, sub 6 GHz) due to tens of billions of machine-type devices connected in a smaller …

There is a need for Radio Frequency Signal Classification (RF-Class) toolbox which can
monitor, detect, and classify wireless signals. Rapid developments in the unmanned aerial …

When an unknown signal propagates through an AWGN channel of unknown variance,
estimating the noise variance can be difficult. We propose a novel method to perform blind …

The main part of the alerting system of the GMDSS is done by automating alerting using
Digital Selective Calling on VHF or MF/HF bands. Most of the small craft used to transport …

Data transmission in HF and UHF radio channels require modern types of modulations.
OFDM and Multicarrier are modulation types that have been imposed on 4G and Wi-Fi data …

The increasing number of wireless communication applications has led to spectrum scarcity
problems. On the other hand, the current system in allocating the spectrum frequency is …

The LoRa protocol stands out for its applicability in remote sensing and the IoT. However,
this protocol is proprietary and implemented directly on chips developed by its owner, which …

There has been an enormous upsurge in mobile communication due to technological
advancements, as a result the demand for radio spectrum is increasing day by day. Since …