TY - GEN
T1 - Outage probability of multi-carrier NOMA systems under joint I/Q imbalance
AU - Selim, Bassant
AU - Muhaidat, Sami
AU - Sofotasios, Paschalis C.
AU - Sharif, Bayan S.
AU - Stouraitis, Thanos
AU - Karagiannidis, George K.
AU - Al-Dhahir, Naofal
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/5/16
Y1 - 2018/5/16
N2 - Non-orthogonal multiple access (NOMA) has been recently proposed as a viable technology that can potentially improve the spectral efficiency of fifth generation (5G) wireless networks and beyond. However, in practical communication scenarios, transceiver architectures inevitably suffer from radio-frequency (RF) front-end related impairments that can lead to degradation of the overall system performance, with in-phase/quadrature-phase imbalance (IQI) constituting a major impairment in direct-conversion transceivers. In the present work, we quantify the effects of joint transmitter/receiver IQI on the performance of NOMA based multi-carrier (MC) systems under multipath fading conditions. Furthermore, we derive the asymptotic diversity order of the considered MC NOMA set up. Capitalizing on these results, we demonstrate that the effects of IQI differ considerably among NOMA users and depend on the underlying system parameters. For example, it is shown that the first sorted user appears more robust to IQI, which indicates that higher order users are more sensitive to the considered non-negligible impairment.
AB - Non-orthogonal multiple access (NOMA) has been recently proposed as a viable technology that can potentially improve the spectral efficiency of fifth generation (5G) wireless networks and beyond. However, in practical communication scenarios, transceiver architectures inevitably suffer from radio-frequency (RF) front-end related impairments that can lead to degradation of the overall system performance, with in-phase/quadrature-phase imbalance (IQI) constituting a major impairment in direct-conversion transceivers. In the present work, we quantify the effects of joint transmitter/receiver IQI on the performance of NOMA based multi-carrier (MC) systems under multipath fading conditions. Furthermore, we derive the asymptotic diversity order of the considered MC NOMA set up. Capitalizing on these results, we demonstrate that the effects of IQI differ considerably among NOMA users and depend on the underlying system parameters. For example, it is shown that the first sorted user appears more robust to IQI, which indicates that higher order users are more sensitive to the considered non-negligible impairment.
UR - http://www.scopus.com/inward/record.url?scp=85048327091&partnerID=8YFLogxK
U2 - 10.1109/COMMNET.2018.8360283
DO - 10.1109/COMMNET.2018.8360283
M3 - Conference contribution
AN - SCOPUS:85048327091
T3 - Proceedings - 2018 International Conference on Advanced Communication Technologies and Networking, CommNet 2018
SP - 1
EP - 7
BT - Proceedings - 2018 International Conference on Advanced Communication Technologies and Networking, CommNet 2018
A2 - Karagiannidis, George K.
A2 - Sofotasios, Paschalis C.
A2 - Sofotasios, Paschalis C.
A2 - EI Bouanani, Faissal
A2 - Ayoub, Fouad
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2nd International Conference on Advanced Communication Technologies and Networking, CommNet 2018
Y2 - 2 April 2018 through 4 April 2018
ER -