Open AccessOn Performance of Downlink Non-Orthogonal Multiple Access Wireless System Relying on UAV
Author(s) -
AnhTu Le,
AUTHOR_ID,
Nhan Duc Nguyen,
DinhThuan Do
Publication year - 2022
Publication title -
journal of communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.185
H-Index - 35
eISSN - 2374-4367
pISSN - 1796-2021
DOI - 10.12720/jcm.17.1.17-22
Subject(s) - computer science , telecommunications link , wireless , channel (broadcasting) , channel state information , communications system , real time computing , computer network , telecommunications
Wireless communications relying on Unmanned Aerial Vehicles (UAVs) is a promising candidate in future communication systems. Compared with conventional terrestrial communications, UAV networks has some significant benefits including cost-effectiveness, mobility, fast deployment, higher probability of Line-of-Sight (LoS) links between UAV and ground terminals. Based on ideal conditions of high Signal-to-Noise Ratio (SNR), Non-Orthogonal Multiple Access (NOMA) with fixed power allocation factor is adopted to indicate performance of two users. These ground user from UAV is independent of channel and trajectory parameters is further evaluated under impact of imperfect channel state information (CSI). We drive the closed-form formula of outage probability for two ground users. Simulation results provide impacts of system parameters on outage behavior.