TY - JOUR
T1 - Performance Analysis for Downlink NOMA over α-μ Generalized Fading Channels
AU - Alqahtani, Adel
AU - Alsusa, E.
AU - Al-Dweik, A.
AU - Al-Jarrah, M.
N1 - Funding Information:
Manuscript received November 16, 2020; revised April 7, 2021 and May 17, 2021; accepted May 17, 2021. Date of publication May 24, 2021; date of current version July 20, 2021. The work of Arafat Al-Dweik was supported by Khalifa University Competitive Internal Research Award under Grant CIRA 2056. This work is published in part at the 2020 IEEE VTC conference [1]. The review of this article was coordinated by Dr. Zhiguo Ding. (Corresponding author: Arafat Al-Dweik) Adel Alqahtani, Emad Alsusa, and Mohammad Al-Jarrah are with the School of Electrical, and Electronic Engineering, University of Manchester, Manchester M1 3WE, U.K. (e-mail: [email protected]; [email protected]; [email protected]).
Publisher Copyright:
© 1967-2012 IEEE.
PY - 2021/7
Y1 - 2021/7
N2 - This work presents a performance analysis for downlink non-orthogonal multiple accesses (DL-NOMA) systems where the channel gains follow the $\alpha$-$\mu$ fading distribution. Specifically, closed-form expressions are derived for DL-NOMA in terms of the outage probability (OP), bit error rate (BER), and ergodic capacity (EC). The OP analysis considers two main scenarios, the first is when the individual user's rate is required to satisfy a certain quality of service (QoS), while the second is when the individual user's NOMA rate is less than that of the conventional orthogonal multiple access (OMA) rate. Moreover, the derived BER performance is generalized for the case of $M$-ary quadrature amplitude modulation (MQAM). The results demonstrate the interplay between the system performance, the power allocation coefficients, target data rates, and the channel fading parameters. Moreover, the OP results reveal that NOMA users with OMA data rate experience higher outage compared to NOMA with fixed target data rate. The accuracy of the derived expressions is validated using extensive Monte Carlo simulation.
AB - This work presents a performance analysis for downlink non-orthogonal multiple accesses (DL-NOMA) systems where the channel gains follow the $\alpha$-$\mu$ fading distribution. Specifically, closed-form expressions are derived for DL-NOMA in terms of the outage probability (OP), bit error rate (BER), and ergodic capacity (EC). The OP analysis considers two main scenarios, the first is when the individual user's rate is required to satisfy a certain quality of service (QoS), while the second is when the individual user's NOMA rate is less than that of the conventional orthogonal multiple access (OMA) rate. Moreover, the derived BER performance is generalized for the case of $M$-ary quadrature amplitude modulation (MQAM). The results demonstrate the interplay between the system performance, the power allocation coefficients, target data rates, and the channel fading parameters. Moreover, the OP results reveal that NOMA users with OMA data rate experience higher outage compared to NOMA with fixed target data rate. The accuracy of the derived expressions is validated using extensive Monte Carlo simulation.
KW - ergodic capacity (EC), α-μ fading
KW - Non-orthogonal multiple access (NOMA)
KW - outage probability (OP)
UR - http://www.scopus.com/inward/record.url?scp=85107183153&partnerID=8YFLogxK
U2 - 10.1109/TVT.2021.3082917
DO - 10.1109/TVT.2021.3082917
M3 - Article
AN - SCOPUS:85107183153
SN - 0018-9545
VL - 70
SP - 6814
EP - 6825
JO - IEEE Transactions on Vehicular Technology
JF - IEEE Transactions on Vehicular Technology
IS - 7
M1 - 9439941
ER -