TY - GEN
T1 - Uplink Transmission in Mixed RF/FSO Satellite-aerial-Terrestrial Networks
AU - Huang, Qingquan
AU - Lin, Min
AU - Zhu, Wei-Ping
AU - Cheng, Julian
AU - Alouini, Mohamed-Slim
N1 - KAUST Repository Item: Exported on 2021-02-25
PY - 2020
Y1 - 2020
N2 - This paper investigates the uplink space division multiple access in a satellite-aerial-terrestrial network, where multiple users access to satellite with the aid of a unmanned aerial vehicle, and the two hops adopt radio frequency (RF) and free space optical (FSO), respectively. We first formulate an optimization problem to maximize the ergodic sum rate (ESR) of the considered system. Then a statistical channel state information (CSI)-based beamforming (BF) scheme is proposed to solve the non-convex ESR maximization problem. The main advantage of the proposed method is that only statistical CSI is used to obtain BF vectors so that a low implementation complexity can be achieved. Then, by assuming that the RF and FSO links undergo Nakagami-m and Gamma-Gamma fading, respectively, closed-form expression for ESR of the considered system is derived. Simulation results validate the derived expression and confirm the effectiveness of the proposed BF scheme.
AB - This paper investigates the uplink space division multiple access in a satellite-aerial-terrestrial network, where multiple users access to satellite with the aid of a unmanned aerial vehicle, and the two hops adopt radio frequency (RF) and free space optical (FSO), respectively. We first formulate an optimization problem to maximize the ergodic sum rate (ESR) of the considered system. Then a statistical channel state information (CSI)-based beamforming (BF) scheme is proposed to solve the non-convex ESR maximization problem. The main advantage of the proposed method is that only statistical CSI is used to obtain BF vectors so that a low implementation complexity can be achieved. Then, by assuming that the RF and FSO links undergo Nakagami-m and Gamma-Gamma fading, respectively, closed-form expression for ESR of the considered system is derived. Simulation results validate the derived expression and confirm the effectiveness of the proposed BF scheme.
UR - http://hdl.handle.net/10754/667665
UR - https://ieeexplore.ieee.org/document/9348095/
U2 - 10.1109/GLOBECOM42002.2020.9348095
DO - 10.1109/GLOBECOM42002.2020.9348095
M3 - Conference contribution
SN - 978-1-7281-8299-5
BT - GLOBECOM 2020 - 2020 IEEE Global Communications Conference
PB - IEEE
ER -