Outage performance of CoMP-CNOMA networks with duplex mode selection

Li, Bingjing; Xu, Dengfeng; Chen, Bailing; Ahmad, İshtiaq

doi:10.1016/j.phycom.2022.101701

Cited by 2 publications

(2 citation statements)

References 29 publications

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“…A key feature of NOMA technology is that users with better channel conditions can have prior information of other users. By using this prior knowledge, cooperative NOMA (CNOMA) has been utilized to further improve the performance of far users with inferior channel conditions [10][11][12][13]. Recently, a large number of studies have applied NOMA on terrestrial users in hybrid satellite-terrestrial relay networks [14,15].…”

Section: Introductionmentioning

confidence: 99%

On the Secrecy Outage Performance of Cooperative NOMA-Assisted Hybrid Satellite-Terrestrial Networks

Chen

et al. 2022

Wireless Communications and Mobile Computing

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This paper investigates the secrecy outage performance of a downlink cooperative nonorthogonal multiple access- (NOMA-) assisted hybrid satellite-terrestrial network, where a satellite source communicates with two terrestrial users based on NOMA, in the presence of a terrestrial eavesdropper. We assume that there is no direct link between the satellite source and the far terrestrial user, and the near terrestrial user acts as a relay to forward the information to the far terrestrial user. The near user is assumed to support both half-duplex mode and the full-duplex mode for information relaying. We derive the closed-form exact expressions for the secrecy outage probability (SOP) of the near user, as well as the closed-form approximate expressions for the SOP of the far user based on the Gaussian-Chebyshev quadrature. Theoretical results are validated by conducting simulations. The impacts of various system parameters on the performance comparison between the half-duplex mode and full-duplex mode are investigated. Particularly, the full-duplex mode is shown to outperform the half-duplex mode when the received signal-to-noise ratio (SNR) at the near user is low or the residual self-interference is low.

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Section: Introductionmentioning

confidence: 99%

On the Secrecy Outage Performance of Cooperative NOMA-Assisted Hybrid Satellite-Terrestrial Networks

Chen

et al. 2022

Wireless Communications and Mobile Computing

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“…CoMP and relays have been introduced for previous cellular systems and mentioned by 3GPP as the fundamental elements of these systems [8]. Currently, both CoMP and relays are studied with new features to adapt to advanced techniques of B5G such as Non-Orthogonal Multi-Access (NOMA) [10], beam forming [11], massive MIMO and Simultaneous Wireless Information and Power Transfer (SWIPT) [12]. The operation of CoMP in the industrial 5G network was also studied to provide Ultra-Reliability and Low Latency (URLLC) service.…”

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confidence: 99%

Improving Performance of the Typical User in the Indoor Cooperative NOMA Millimeter Wave Networks with Presence of Walls

Lam,

Tran

2024

EAI Endorsed Trans Ind Net Intel Syst

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INTRODUCTION: The beyond 5G millimeter wave cellular network system is expecting to provide the high quality of service in indoor areas. OBJECTIVES: Due to the high density of obstacles, the cooperative communication technique is employed to improve the user's desired signal power by finding more than one appropriate station to serve that user. METHODS: While the conventional system utilizes additional equipment such as Reconfigurable Intelligent Surfaces (RIS) and relays to enable the cooperative features, the paper introduces a new network paradigm that utilizes the second nearest Base Station (BS) of the typical user as the Decode and Forward (DF) relay. Thus, depends on the success of decoding the message from the user' serving BS of the second nearest BS, the typical user can work with and without assistance from the relay whose operation follows the discipline of the power-domain NOMA technique. In the case of with relay assistance, the Maximum Ratio Combining technique is utilized by the typical user to combine the desired signals. RESULTS: To examine the performance of the proposed system, the Nakagami-m and the newly developed path loss model, which considers the density of walls and their properties, are adopted to derive the coverage probability of the user with and without relay assistance. The closed-form expressions of this performance metric are derived by Gauss quadrature and Welch-Satterthwaite approximation.

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Outage performance of CoMP-CNOMA networks with duplex mode selection

Cited by 2 publications

References 29 publications

On the Secrecy Outage Performance of Cooperative NOMA-Assisted Hybrid Satellite-Terrestrial Networks

On the Secrecy Outage Performance of Cooperative NOMA-Assisted Hybrid Satellite-Terrestrial Networks

Improving Performance of the Typical User in the Indoor Cooperative NOMA Millimeter Wave Networks with Presence of Walls

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