131 citations · 150 across the 5 of their papers we have counts for
6 papers
Beam Tracking for UAV-Assisted FSO Links With a Four-Quadrant Detector
Hossein Safi, Akbar Dargahi, Julian Cheng
A ground-to-air free-space optical link is studied for a hovering unmanned aerial vehicle (UAV) having multiple rotors. For this UAV, a four-quadrant array of photodetectors is use…
Statistical Channel Modeling for Long-Range Ground-to-Air FSO Links
Hossein Safi, Akbar Dargahi
To provide high data rate aerial links for 5G and beyond wireless networks, the integration of free-space optical (FSO) communications and aerial platforms has been recently sugges…
Analytical Channel Model and Link Design Optimization for Ground-to-HAP Free-Space Optical Communication Networks
Hossein Safi, Akbar Dargahi, Julian Cheng +1
Integrating high altitude platforms (HAPs) and free-space optical (FSO) communications is a promising solution to establish high data rate aerial links for the next-generation wire…
Spectrum Sensing and Resource Allocation for 5G Heterogeneous Cloud Radio Access Networks
Hossein Safi, A. M Montazeri, Javane Rostampoor +1
In this paper, the problem of opportunistic spectrum sharing for the next generation of wireless systems empowered by the cloud radio access network (C-RAN) is studied. More precis…
Analytical Channel Models for Millimeter Wave UAV Networks under Hovering Fluctuations
Mohammad Taghi Dabiri, Hossein Safi, Saeedeh Parsaeefard +1
The integration of unmanned aerial vehicles (UAVs) and millimeter wave (mmWave) wireless systems has been recently proposed to provide high data rate aerial links for next generati…
Spatial Beam Tracking and Data Detection for an FSO Link to a UAV in the Presence of Hovering Fluctuations
Hossein Safi, Akbar Dargahi, Julian Cheng
Recent advances in small-scale unmanned aerial vehicles (UAVs) have opened up new horizons for establishing UAV-based free-space optical (FSO) links. However, FSO technology requir…