Non-Orthogonal Multiple Access With Cooperative Full-Duplex Relaying

Zhong, Caijun; Zhang, Zhaoyang

doi:10.1109/lcomm.2016.2611500

Cited by 341 publications

(335 citation statements)

References 7 publications

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“…In the C-NOMA, the NOMA scheme presented in Section 2 is always used regardless of the channel conditions. Thus, the achievable rate of the C-NOMA is given as (10), and its asymptotic average rate for ߩ → ∞ is given as [5, eq. (15)] Fig.…”

Section: Numerical Resultsmentioning

confidence: 99%

Achievable Rate Analysis for Opportunistic Non-orthogonal Multiple Access-Based Cooperative Relaying Systems

2017

J Inf Process Syst

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In this paper, we propose the opportunistic non-orthogonal multiple access (NOMA)-based cooperative relaying system (CRS) with channel state information (CSI) available at the source, where CSI for the sourceto-destination and source-to-relay links is used for opportunistic transmission. Using the CSI, for opportunistic transmission, the source instantaneously chooses between the direct transmission and the cooperative NOMA transmission. We provide an asymptotic expression for the average achievable rate of the opportunistic NOMA-based CRS under Rayleigh fading channels. We verify the asymptotic analysis through Monte Carlo simulations, and compare the average achievable rates of the opportunistic NOMA-based CRS and the conventional one for various channel powers and power allocation coefficients used for NOMA.

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Section: Numerical Resultsmentioning

confidence: 99%

Achievable Rate Analysis for Opportunistic Non-orthogonal Multiple Access-Based Cooperative Relaying Systems

2017

J Inf Process Syst

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“…Two main metrics including ergodic sum rate and outage performance of the system are studied . On the other hand, to improve the performance of NOMA systems, the required relay can be employed in many scenarios . In Kim and Lee and Zhong and Zhang, to increase the system quality of the user who has poor channel condition, two‐user NOMA systems are required by employing a dedicated half‐duplex relay or a dedicated full‐duplex relay .…”

Section: Introductionmentioning

confidence: 99%

Exploiting secure performance in power domain–based multiple access: Impacts of relay link/direct link and secure analysis

Nguyen

Hoang

2019

Int J Communication

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Summary A new design of secure nonorthogonal multiple access (NOMA) deployed together with cooperative relaying network is investigated in two modes including direct link and relay link. This paper proposes a mathematical analysis under secrecy considerations of a downlink two‐user NOMA systems. In particular, physical layer security of NOMA is studied in two specific metrics to achieve secure performance analysis such as the secrecy outage probability (SOP) and probability of strictly positive secrecy capacity (SPSC). It should be further explored the situation as the illegal user which is assumed to be eavesdropper at the information level, it attempts to decode the information intended to legal users while NOMA scheme is employed for legal users. The transmission techniques of NOMA equipping relaying architecture (dual‐hop transmission) have proposed due to improving the spectrum efficiency greatly compared with the traditional single‐hop networks. Finally, this study shows the advantages of NOMA over the traditional orthogonal multiple access in the studied problems analytically and numerical analysis is further provided. As important achievement, new exact and closed‐form expressions of the SOP and SPSC are derived, and they will be confirmed by simulation, ie, Monte Carlo simulations are performed to verify the proposed analytical results. Ultimately, the effects of some critical factors are studied on secure performance through these simulation results.

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“…Moreover, NOMA has been demonstrated to be compatible with other emerging technologies [11][12][13][14]. In particular, the impact of imperfect self-interference cancellation for full-duplex cooperative NOMA is investigated in [12], while authors in [13] study the combination of NOMA and relay selection and results show that the proposed strategy can provide maximal diversity gain.…”

Section: Introductionmentioning

confidence: 99%

“…In particular, the impact of imperfect self-interference cancellation for full-duplex cooperative NOMA is investigated in [12], while authors in [13] study the combination of NOMA and relay selection and results show that the proposed strategy can provide maximal diversity gain. Considering multiple sources, relay sharing scheme is proposed in [14] and results show that the proposed scheme outperforms OMA under perfect or imperfect SIC.…”

Section: Introductionmentioning

confidence: 99%

Impact of Antenna Selection on Physical‐Layer Security of NOMA Networks

Deng

Fan

et al. 2018

Wireless Communications and Mobile Computing

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This paper studies the impacts of antenna selection algorithms in decode-and-forward (DF) cooperative nonorthogonal multiple access (NOMA) networks, where the secure information from the relay can be overheard by an eavesdropper in the networks. In order to ensure the secure transmission, an optimal antenna selection algorithm is proposed to choose one best relay's antenna to assist the secure transmission. We study the impact of antenna selection on the system secure communication through deriving the analytical expression of the secrecy outage probability along with the asymptotic expression in the high regime of signal-tonoise ratio (SNR) and main-to-eavesdropper ratio (MER). From the analytical and asymptotic expressions, we find that the system secure performance is highly dependent on the system parameters such as the number of antennas at the relay, SNR, and MER. In particular, the secrecy diversity order of the system is equal to the antenna number, when the interference from the second user is limited.

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Non-Orthogonal Multiple Access With Cooperative Full-Duplex Relaying

Cited by 341 publications

References 7 publications

Achievable Rate Analysis for Opportunistic Non-orthogonal Multiple Access-Based Cooperative Relaying Systems

Achievable Rate Analysis for Opportunistic Non-orthogonal Multiple Access-Based Cooperative Relaying Systems

Exploiting secure performance in power domain–based multiple access: Impacts of relay link/direct link and secure analysis

Impact of Antenna Selection on Physical‐Layer Security of NOMA Networks

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