TY - GEN
T1 - Channel Modeling for Mobile Airborne FSO Backhauling
AU - Elamassie, Mohammed
AU - Uysal, Murat
N1 - Publisher Copyright:
© 2024 IEEE.
PY - 2024
Y1 - 2024
N2 - With its high capacity and immunity to electro-magnetic interference, free space optical (FSO) communication is positioned to be a key connectivity solution for airborne backhauling. In this paper, we consider a scenario where a fleet of high-altitude platform stations (HAPSs) follow a predefined circular trajectory and provide airborne backhauling to ground base stations. Unlike terrestrial FSO links that are primarily limited by atmospheric turbulence-induced fading, aerial links between a HAPS and a ground station are subject to fading effects induced by mobility. The instantaneous transmission distance continuously changes due to movement, leading to a time-varying atmospheric attenuation loss and geometric loss. These mobility-induced variations in the average received power effectively introduce a fading effect. In this paper, we present a statistical model for the aggregate airborne channel coefficient. First, we derive a probability density function (PDF) to describe the instantaneous changes in the propagation distances as a result of mobility. Then, we derive the PDF for the aggregate channel coefficient that includes both geometric losses and atmospheric attenuation. We present numerical results to corroborate our analytical findings and discuss the effects of several system and channel parameters on the severity of fading.
AB - With its high capacity and immunity to electro-magnetic interference, free space optical (FSO) communication is positioned to be a key connectivity solution for airborne backhauling. In this paper, we consider a scenario where a fleet of high-altitude platform stations (HAPSs) follow a predefined circular trajectory and provide airborne backhauling to ground base stations. Unlike terrestrial FSO links that are primarily limited by atmospheric turbulence-induced fading, aerial links between a HAPS and a ground station are subject to fading effects induced by mobility. The instantaneous transmission distance continuously changes due to movement, leading to a time-varying atmospheric attenuation loss and geometric loss. These mobility-induced variations in the average received power effectively introduce a fading effect. In this paper, we present a statistical model for the aggregate airborne channel coefficient. First, we derive a probability density function (PDF) to describe the instantaneous changes in the propagation distances as a result of mobility. Then, we derive the PDF for the aggregate channel coefficient that includes both geometric losses and atmospheric attenuation. We present numerical results to corroborate our analytical findings and discuss the effects of several system and channel parameters on the severity of fading.
KW - Backhauling
KW - Channel Modeling
KW - Free Space Optical Communication
KW - High-Altitude Platform Stations
KW - Non-Terrestrial Networks
UR - http://www.scopus.com/inward/record.url?scp=85198854879&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85198854879&partnerID=8YFLogxK
U2 - 10.1109/WCNC57260.2024.10570961
DO - 10.1109/WCNC57260.2024.10570961
M3 - Conference contribution
AN - SCOPUS:85198854879
T3 - IEEE Wireless Communications and Networking Conference, WCNC
BT - 2024 IEEE Wireless Communications and Networking Conference, WCNC 2024 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 25th IEEE Wireless Communications and Networking Conference, WCNC 2024
Y2 - 21 April 2024 through 24 April 2024
ER -