TY - JOUR
T1 - Outage Performance for NOMA-Based FSO-RF Systems With Transmit Antenna Selection and Nonlinear Energy Harvesting
AU - Zhang, Li
AU - Zhang, Jiliang
AU - Hu, Nana
AU - Li, Xingyi
AU - Pan, Gaofeng
N1 - Publisher Copyright:
© 2014 IEEE.
PY - 2023/4/1
Y1 - 2023/4/1
N2 - In this article, we investigate the outage performance for a dual-hop free space optical-radio frequency communication system, in which a source node communicates with two users on a non-orthogonal multiple access basis via a single-aperture and multi-antenna relay, which can harvest energy from a power beacon under a nonlinear energy harvesting mode. In particular, two transmitting antenna selection (AS) criteria, namely, the random-maximum AS (RA-AS) and the minimum-maximum AS (IA-AS) schemes, are considered to improve the outage performance of the system. In addition, an adaptive power allocation algorithm, which allocates the power to each user according to the instantaneous channel power gain, is adopted for the RA-AS scheme. Considering the Gamma-Gamma distribution and the Rayleigh fading, the closed-form expressions of the outage probability for each user under both the RA-AS and IA-AS schemes are derived. Moreover, the Monte-Carlo simulation verifies the correctness of the theoretical derivations.
AB - In this article, we investigate the outage performance for a dual-hop free space optical-radio frequency communication system, in which a source node communicates with two users on a non-orthogonal multiple access basis via a single-aperture and multi-antenna relay, which can harvest energy from a power beacon under a nonlinear energy harvesting mode. In particular, two transmitting antenna selection (AS) criteria, namely, the random-maximum AS (RA-AS) and the minimum-maximum AS (IA-AS) schemes, are considered to improve the outage performance of the system. In addition, an adaptive power allocation algorithm, which allocates the power to each user according to the instantaneous channel power gain, is adopted for the RA-AS scheme. Considering the Gamma-Gamma distribution and the Rayleigh fading, the closed-form expressions of the outage probability for each user under both the RA-AS and IA-AS schemes are derived. Moreover, the Monte-Carlo simulation verifies the correctness of the theoretical derivations.
KW - Antenna selection (AS)
KW - free space optical-radio frequency (FSO-RF)
KW - non-orthogonal multiple access (NOMA)
KW - nonlinear energy harvesting (EH)
KW - outage probability (OP)
UR - http://www.scopus.com/inward/record.url?scp=85144770261&partnerID=8YFLogxK
U2 - 10.1109/JIOT.2022.3227043
DO - 10.1109/JIOT.2022.3227043
M3 - Article
AN - SCOPUS:85144770261
SN - 2327-4662
VL - 10
SP - 6491
EP - 6506
JO - IEEE Internet of Things Journal
JF - IEEE Internet of Things Journal
IS - 7
ER -