32 citations · 57 across the 11 of their papers we have counts for
4 papers · 1 filter
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…