Safeguarding Next-Generation Multiple Access Using Physical Layer Security Techniques: A Tutorial

doi:10.1109/JPROC.2024.3420127

Safeguarding Next-Generation Multiple Access Using Physical Layer Security Techniques: A Tutorial

2024-09-01

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DOI：10.1109/JPROC.2024.3420127

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Driven by the ever-increasing requirements of ultrahigh spectral efficiency, ultralow latency, and massive connectivity, the forefront of wireless research calls for the design of advanced next-generation multiple access schemes to facilitate the provisioning of these stringent demands. This inspires the embrace of nonorthogonal multiple access (NOMA) in future wireless communication networks. Nevertheless, the support of massive access via NOMA leads to additional security threats due to the open nature of the air interface, the broadcast characteristic of radio propagation, and the intertwined relationship among paired NOMA users. To address this specific challenge, the superimposed transmission of NOMA can be explored as new opportunities for security-aware design; for example, multiuser interference inherent in NOMA can be constructively engineered to benefit communication secrecy and privacy. The purpose of this tutorial is to provide a comprehensive overview of the state-of-the-art physical layer security techniques that guarantee wireless security and privacy for NOMA networks, along with the opportunities, technical challenges, and future research trends.

Keywords:

NOMA

Security

Privacy

Wireless communication

Communication system security

Tutorials

Next generation networking

Artificial intelligence (AI)

covert wireless communication

next-generation multiple access (NGMA)

nonorthogonal multiple access (NOMA)

physical layer security (PLS)

quantum-safe technology

testbed and prototype

Safeguarding Next-Generation Multiple Access Using Physical Layer Security Techniques: A Tutorial

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