Full-Duplex Non-Orthogonal Multiple Access in Cooperative Relay Sharing for 5G Systems
- Authors
- Kader, Md Fazlul; Shin, Soo Young; Leung, Victor C. M.
- Issue Date
- Jul-2018
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Ergodic sum capacity; full-duplex; interference cancellation; non-orthogonal multiple access; outage analysis; relay sharing
- Citation
- IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, v.67, no.7, pp.5831 - 5840
- Journal Title
- IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY
- Volume
- 67
- Number
- 7
- Start Page
- 5831
- End Page
- 5840
- URI
- https://scholarworks.bwise.kr/kumoh/handle/2020.sw.kumoh/323
- DOI
- 10.1109/TVT.2018.2799939
- ISSN
- 0018-9545
- Abstract
- In this paper, a full-duplex (FD) non-orthogonal multiple access (NOMA) scheme for a cooperative relay sharing network (termed as FD-NOMA-RS) is presented, in which two source-destination pairs share a dedicated FD relay FD-R. Following the principle of uplink NOMA, both sources transmit their symbols to FD-R, forming a NOMA pair, by depending on their channel conditions with respect to FD-R. The FD-R then decodes these symbols and simultaneously transmits a superimposed composite signal to the destinations with a processing delay tau according to the principle of downlink NOMA. The ergodic sum capacity, outage probability and outage sum capacity of FD-NOMA-RS are investigated comprehensively along with analytical derivations, considering both perfect and imperfect interference cancellation. A simulation is conducted to corroborate the correctness of the analysis presented here. Moreover, the effectiveness of FD-NOMA-RS is demonstrated through analysis and simulation and then compared with that of its counterpart, the half-duplex system.
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