32 citations · 57 across the 11 of their papers we have counts for
11 papers
Data-Aided Channel and Doppler Estimation for mMIMO LEO SatComs with Uncompensated Doppler
Abdollah Masoud Darya, Saeed Abdallah
This paper presents a framework for estimating and tracking massive multiple-input multiple-output (mMIMO) low-Earth-orbit (LEO) satellite channels under uncompensated Doppler. The…
Assessing Ionospheric Scintillation Risk for Direct-to-Cellular Satellite Communications using Frequency-Scaled GNSS Observations
Abdollah Masoud Darya, Muhammad Mubasshir Shaikh
One of the key issues facing Direct-to-Cellular (D2C) satellite communication systems is ionospheric scintillation on the uplink and downlink, which can significantly degrade link…
EM-Based Channel Estimation for mMIMO LEO SATCOM Under Imperfect Doppler Compensation
Abdollah Masoud Darya, Saeed Abdallah
Massive multiple-input multiple-output low-Earth-orbit communication channels are highly time-varying due to severe Doppler shifts and propagation delays. While satellite-mobility-…
Semi-blind Channel Estimation for Massive MIMO LEO Satellite Communications
Abdollah Masoud Darya, Saeed Abdallah
This letter proposes decision-directed semi-blind channel estimation for massive multiple-input multiple-output low-Earth-orbit satellite communications. Two semi-blind estimators…
Using Intermittent Chaotic Clocks to Secure Cryptographic Chips
Abdollah Masoud Darya, Sohaib Majzoub, Ali A. El-Moursy +3
This letter proposes using intermittent chaotic clocks, generated from chaotic maps, to drive cryptographic chips running the Advanced Encryption Standard as a countermeasure again…
Seasonal Performance Evaluation of a Hybrid PV-Wind-Battery Power System for a Mars Base
Abdollah Masoud Darya, Ramesh C. Bansal, Omaima Anwar Jarndal
This work investigates a hybrid photovoltaic-wind-battery power system designed to sustain a Mars base under varying seasonal and climatic conditions. The Mars Climate Database was…
Multi-instrument analysis of L-band amplitude scintillation observed over the Eastern Arabian Peninsula
Abdollah Masoud Darya, Muhammad Mubasshir Shaikh, Grzegorz Nykiel +2
This study investigates the spatial and temporal characteristics of L1 amplitude scintillation-causing ionospheric irregularities over the Eastern Arabian Peninsula during the asce…
Morphological Classification of Extragalactic Radio Sources Using Gradient Boosting Methods
Abdollah Masoud Darya, Ilias Fernini, Marley Vellasco +1
The field of radio astronomy is witnessing a boom in the amount of data produced per day due to newly commissioned radio telescopes. One of the most crucial problems in this field…
Martian Ionosphere Electron Density Prediction Using Bagged Trees
Abdollah Masoud Darya, Noora Alameri, Muhammad Mubasshir Shaikh +1
The availability of Martian atmospheric data provided by several Martian missions broadened the opportunity to investigate and study the conditions of the Martian ionosphere. As su…
Amplitude Scintillation Forecasting Using Bagged Trees
Abdollah Masoud Darya, Aisha Abdulla Al-Owais, Muhammad Mubasshir Shaikh +1
Electron density irregularities present within the ionosphere induce significant fluctuations in global navigation satellite system (GNSS) signals. Fluctuations in signal power are…
Empirical evaluation of shallow and deep learning classifiers for Arabic sentiment analysis
Ali Bou Nassif, Abdollah Masoud Darya, Ashraf Elnagar
This work presents a detailed comparison of the performance of deep learning models such as convolutional neural networks (CNN), long short-term memory (LSTM), gated recurrent unit…