TY - GEN
T1 - Impact of Receiver Orientation on Full-Duplex Relay Aided NOMA Underwater Optical Wireless Systems
AU - Palitharathna, Kapila W.S.
AU - Suraweera, Himal A.
AU - Godaliyadda, Roshan I.
AU - Herath, Vijitha R.
AU - Din, Zhiguo
N1 - Funding Information:
The work of Z. Ding was supported by the UK EPSRC under grant number EP/P009719/2.
Publisher Copyright:
© 2020 IEEE.
PY - 2020/6
Y1 - 2020/6
N2 - In this paper, we consider a non-orthogonal multiple access (NOMA) underwater optical wireless communication system in which a full-duplex decode-and-forward relay is used to assist the far user with weak channel conditions. Full-duplex operation introduces interference to the near user with strong channel conditions and our model covers several practical assumptions such as imperfect interference cancellation and random receiver orientation at the near/far user. In particular, we derive the exact outage probability at the near user and far user valid for log-normal weak turbulence conditions. An accurate outage approximation for the near user is also derived in closed-form. The correctness of the analysis has been verified through simulation results where they both match closely. Moreover, the derived expressions are useful to investigate the impact of various system and channel parameters such as the access point/relay transmit power, node locations, strength of the residual interference and random receiver orientation at the near and far user. Our results reveal that the outage probability of the near user is more sensitive to receiver orientation errors as compared to the far user.
AB - In this paper, we consider a non-orthogonal multiple access (NOMA) underwater optical wireless communication system in which a full-duplex decode-and-forward relay is used to assist the far user with weak channel conditions. Full-duplex operation introduces interference to the near user with strong channel conditions and our model covers several practical assumptions such as imperfect interference cancellation and random receiver orientation at the near/far user. In particular, we derive the exact outage probability at the near user and far user valid for log-normal weak turbulence conditions. An accurate outage approximation for the near user is also derived in closed-form. The correctness of the analysis has been verified through simulation results where they both match closely. Moreover, the derived expressions are useful to investigate the impact of various system and channel parameters such as the access point/relay transmit power, node locations, strength of the residual interference and random receiver orientation at the near and far user. Our results reveal that the outage probability of the near user is more sensitive to receiver orientation errors as compared to the far user.
UR - http://www.scopus.com/inward/record.url?scp=85089434764&partnerID=8YFLogxK
U2 - 10.1109/ICC40277.2020.9148810
DO - 10.1109/ICC40277.2020.9148810
M3 - Conference contribution
AN - SCOPUS:85089434764
T3 - IEEE International Conference on Communications
BT - 2020 IEEE International Conference on Communications, ICC 2020 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2020 IEEE International Conference on Communications, ICC 2020
Y2 - 7 June 2020 through 11 June 2020
ER -