Amplify-and-forward virtual full-duplex relaying based cooperative NOMA
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...
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| Main Authors: | , , |
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| Format: | Article |
| Published: |
Institute of Electrical and Electronics Engineers Inc.
2017
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| Subjects: | |
| Online Access: | http://eprints.utm.my/id/eprint/77160/ https://www.scopus.com/inward/record.uri?eid=2-s2.0-85039792435&doi=10.1109%2fLWC.2017.2785303&partnerID=40&md5=6adf1dae50de256e8bf5405179e405b9 |
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| Summary: | 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 (OMA) system and ideal full duplex relaying based NOMA systems. |
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