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- W4308190719 abstract "We consider a cooperative non-orthogonal multiple access (NOMA) network in which a full-duplex (FD) multi-antenna relay assists transmission from a base station (BS) to a set of far users with poor channel conditions, while at the same time the BS transmits to a set of near users with strong channel conditions. We assume imperfect self-interference (SI) cancellation at the FD relay and imperfect inter-user interference cancellation at the near users. In order to cancel the SI at the relay a zero-forcing based beamforming scheme is used and the corresponding outage probability analysis of two user selection strategies, namely random near user and random far user (RNRF), and nearest near user and nearest far user (NNNF), are derived. Our finding suggests that significant performance improvement can be achieved by using the FD multi-antenna relay compared to the counterpart system with a half-duplex relay. The achieved performance gain depends on network parameters such as the user density, user zones, path loss and the strength of the inter-user interference in case of near users. We also show that the NNNF strategy exhibits a superior outage performance compared to the RNRF strategy, especially in the case of near" @default.
- W4308190719 created "2022-11-09" @default.
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- W4308190719 date "2017-08-13" @default.
- W4308190719 modified "2023-10-14" @default.
- W4308190719 title "Full-duplex Multi-Antenna Relay Assisted Cooperative Non-Orthogonal Multiple Access" @default.
- W4308190719 doi "https://doi.org/10.48550/arxiv.1708.03919" @default.
- W4308190719 hasPublicationYear "2017" @default.
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