TY - JOUR
T1 - Amplify-and-Forward Virtual Full-Duplex Relaying-Based Cooperative NOMA
AU - Liau, Qian Yu
AU - Leow, Chee Yen
AU - Ding, Zhiguo
N1 - Funding Information:
Manuscript received November 1, 2017; revised December 5, 2017; accepted December 15, 2017. Date of publication December 19, 2017; date of current version June 19, 2018. This work supported in part by H2020-MSCA-RISE-2015 under Grant 690750, and in part by the Ministry of Higher Education Malaysia and Universiti Teknologi Malaysia under Grant 4F818, Grant 4J210, and Grant 12H35. The associate editor coordinating the review of this paper and approving it for publication was T. Riihonen. (Corresponding author: Qian Yu Liau.) Q. Y. Liau and C. Y. Leow are with the Wireless Communication Centre, Faculty of Electrical Engineering, Universiti Teknologi Malaysia, Johor Bahru 81310, Malaysia (e-mail: [email protected]; [email protected]).
Publisher Copyright:
© 2012 IEEE.
PY - 2018/6
Y1 - 2018/6
N2 - This letter studies the performance of a virtual full-duplex relaying technique in cooperative non-orthogonal multiple access (NOMA)-based systems. In particular, two half-duplex amplify-and-forward relays imitate the operation of full-duplex relaying in cooperative NOMA systems using the successive relaying (SR) technique, in order to recover the loss of spectral efficiency due to the half-duplex constraint at the relays. The closed-form outage probability of the proposed scheme is derived. The simulation results show that the proposed SR-based cooperative NOMA system with an opportunistic power split factor achieves a lower outage probability and a higher ergodic rate than the existing SR-based orthogonal multiple access system and ideal full duplex relaying-based NOMA systems.
AB - This letter studies the performance of a virtual full-duplex relaying technique in cooperative non-orthogonal multiple access (NOMA)-based systems. In particular, two half-duplex amplify-and-forward relays imitate the operation of full-duplex relaying in cooperative NOMA systems using the successive relaying (SR) technique, in order to recover the loss of spectral efficiency due to the half-duplex constraint at the relays. The closed-form outage probability of the proposed scheme is derived. The simulation results show that the proposed SR-based cooperative NOMA system with an opportunistic power split factor achieves a lower outage probability and a higher ergodic rate than the existing SR-based orthogonal multiple access system and ideal full duplex relaying-based NOMA systems.
KW - amplify-and-forward (AF)
KW - Non-orthogonal multiple access (NOMA)
KW - successive relaying (SR)
UR - https://www.scopus.com/pages/publications/85039792435
U2 - 10.1109/LWC.2017.2785303
DO - 10.1109/LWC.2017.2785303
M3 - Article
AN - SCOPUS:85039792435
SN - 2162-2337
VL - 7
SP - 464
EP - 467
JO - IEEE Wireless Communications Letters
JF - IEEE Wireless Communications Letters
IS - 3
ER -