Performance analysis of MIMO‐based CR–NOMA communication systems

Thakur, Prabhat; Singh, Ghanshyam

doi:10.1049/iet-com.2019.0988

Cited by 8 publications

(2 citation statements)

References 39 publications

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“…On the other hand, MIMO-NOMA employs multiple antenna technology, which enhances spatial reuse, enabling spatial resource allocation. There have been many studies on CR-NOMA technology, which have achieved good results [130,131]. It is believed that the reasonable combination of this technology with ISAC can further improve spectrum efficiency and optimize energy consumption.…”

Section: Cognitive Radiomentioning

confidence: 99%

ISAC towards 6G Satellite–Terrestrial Communications: Principles, Status, and Prospects

Gu,

Xu,

Feng

et al. 2024

Electronics

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With the evolution of fifth-generation (5G) to sixth-generation (6G) communication systems, the utilization of spectrum resources faces incremental challenges. Integrated sensing and communication (ISAC) technology, as a crucial element in 6G technology, is expected to enhance energy efficiency and spectrum utilization efficiency by integrating radar and communication signals, achieving environmental awareness, and enabling scene interconnection. Simultaneously, to realize the vision of seamless coverage in 6G, research on integrated satellite-terrestrial communication has been prioritized. To integrate the advantages, ISAC for integrated satellite–terrestrial networks (ISTNs) in 6G has emerged as a potential research direction. This paper offers an extensive overview of the present state of key technologies for ISAC and the development of ISTNs. Meanwhile, with a focus on the ISTN-oriented 6G ISAC system, several hotspot topics, including future application scenarios and key technological developments, are outlined and demonstrated.

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Section: Cognitive Radiomentioning

confidence: 99%

ISAC towards 6G Satellite–Terrestrial Communications: Principles, Status, and Prospects

Gu,

Xu,

Feng

et al. 2024

Electronics

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“…[13][14][15] Based on the analysis of the uplink and downlink schemes, different communication systems combining CR, NOMA and multiple-input multipleoutput (MIMO) are designed, and a spectral-and interference-efficient framework which is named as MIMO-based CR-NOMA system framework is proposed. 16 Some efforts have designed NOMA resource allocation scheme to improve its security in CR communication systems under half-duplex (HD) operation. 17,18 The cooperative simultaneous wireless information and power transfer system for NOMA in wireless networks system of HD operation has been carried out, 19,20 and HD-NOMA in a MIMO wireless networks 21 setup has been investigated.…”

Section: Introductionmentioning

confidence: 99%

Physical layer security in cognitive NOMA sensor networks with full-duplex technique

Shang

Zhang

Tao

et al. 2021

International Journal of Distributed Sensor Networks

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This article studies the physical layer security in a downlink full-duplex cognitive non-orthogonal multiple access sensor networks (FD-C-NOMA). Compared with the existing works, this article proposes a FD-C-NOMA transmission scheme with a primary user (PU) and secondary user (SU) sensor nodes in the presence of an eavesdropper. The zero-forcing beamforming design problems of FD operation are investigated subject to the practical secrecy rate and the quality of services of PU. To characterize the security reliability trade-off of the FD-C-NOMA scheme, we first derive the closed-form expressions of connection outage probability (COP), the secrecy outage probability (SOP), and effective secrecy throughput (EST) of each SU in the NOMA networks. Then the impacts of the system parameters on the COP, SOP, and EST are investigated to evaluate the security and reliability in the FD-C-NOMA networks. Furthermore, in order to further verify the security and reliability of our considered network, an OMA scheme of FD operation is provided in the simulation for the purpose of comparison. Results demonstrate that the NOMA-based cognitive sensor networks of FD operation outperforms the OMA system in terms of EST. Finally, simulations are performed to validate the accuracy of our analysis results of the proposed scheme.

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Hybrid Self‐Scheduled Multichannel Medium Access Control Protocol in Cognitive Radio Networks

Thakur¹,

Singh²

2021

Spectrum Sharing in Cognitive Radio Networks

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Performance analysis of MIMO‐based CR–NOMA communication systems

Cited by 8 publications

References 39 publications

ISAC towards 6G Satellite–Terrestrial Communications: Principles, Status, and Prospects

ISAC towards 6G Satellite–Terrestrial Communications: Principles, Status, and Prospects

Physical layer security in cognitive NOMA sensor networks with full-duplex technique

Hybrid Self‐Scheduled Multichannel Medium Access Control Protocol in Cognitive Radio Networks

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