A vision and framework for the high altitude platform station (HAPS) networks of the future

GK Kurt, MG Khoshkholgh, S Alfattani… - … Surveys & Tutorials, 2021 - ieeexplore.ieee.org
A High Altitude Platform Station (HAPS) is a network node that operates in the stratosphere
at an of altitude around 20 km and is instrumental for providing communication services …

Massive MIMO transmission for LEO satellite communications

L You, KX Li, J Wang, X Gao, XG Xia… - IEEE Journal on …, 2020 - ieeexplore.ieee.org
Low earth orbit (LEO) satellite communications are expected to be incorporated in future
wireless networks, in particular 5G and beyond networks, to provide global wireless access …

Secrecy rate analysis of satellite communications with frequency domain NOMA

Z Yin, M Jia, W Wang, N Cheng, F Lyu… - IEEE Transactions …, 2019 - ieeexplore.ieee.org
Due to the inherent broadcasting nature and broad coverage of satellite, satellite
communications are well known to be vulnerable to security threats. Since the distance …

LEO satellite communications with massive MIMO

L You, KX Li, J Wang, X Gao, XG Xia… - ICC 2020-2020 IEEE …, 2020 - ieeexplore.ieee.org
Low earth orbit (LEO) satellite communications are expected to be incorporated in future
wireless networks to provide global wireless access with enhanced data rates. Massive …

Modelling channel attenuation in hybrid optical/E-band system

SW Ho, L Mitchell, V Wang - IEEE Transactions on Wireless …, 2024 - ieeexplore.ieee.org
Existing models for Radio Frequency (RF) and Free Space Optical (FSO) attenuations, such
as the recommendations published by the International Telecommunication Union (ITU) …

Massive MIMO-OTFS-Based Random Access for Cooperative LEO Satellite Constellations

B Shen, Y Wu, S Gong, H Liu… - IEEE Journal on …, 2024 - ieeexplore.ieee.org
This paper investigates joint device identification, channel estimation, and symbol detection
for cooperative multi-satellite-enhanced random access, where orthogonal time-frequency …

Robust Beamforming for Massive MIMO LEO Satellite Communications: A Risk-Aware Learning Framework

M Alsenwi, E Lagunas… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
This paper proposes a robust beamforming algorithm for massive multiple-input multiple-
output (MIMO) low earth-orbit (LEO) satellite communications under uncertain channel …

Link budget analysis for LEO satellites based on the statistics of the elevation angle

JM Gongora-Torres, C Vargas-Rosales… - Ieee …, 2022 - ieeexplore.ieee.org
Link budgets are widely applied to evaluate communication links for low Earth Orbit (LEO)
satellites. However, approaches to calculate the received power from LEO satellites have …

A survey on robust modulation requirements for the next generation personal satellite communications

J Ssimbwa, B Lim, JH Lee, YC Ko - Frontiers in Communications and …, 2022 - frontiersin.org
The unrelenting technological advancement in the generation of wireless networks in recent
years has awakened the motion concerning the inclusion of satellites in personal …

Research on Spectrum Needs Prediction Method for HAPS as IMT Base Station

Y Zhou, F Qi, W Xie - IEEE Access, 2022 - ieeexplore.ieee.org
The High-Altitude Platform Station (HAPS) is an integral component in Non-Terrestrial
Network (NTN) which is potential 6G technology. The HAPS as IMT Base Stations (HIBS) in …