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- W3120896172 abstract "Abstract—Non-orthogonal multiple access (NOMA) is considered as one of the key technologies to achieve the main targets of 5G wireless networks such as high connectivity and reliability. However, as the number of connected users increases, the security of users’ data becomes a real concern. To overcome this vital issue, diverse chaotic communication systems have been designed to offer cost-effective solutions for physical layer security (PLS). In this paper, an efficient chaos-based secure power-domain NOMA (SPD-NOMA) scheme is proposed over Rayleigh fading channel. At the users’ side, chaos shift keying is employed for signal modulation with dynamic transmit power control. Successive interference cancellation (SIC) and chaos demodulation are used at the receiver for multiuser detection. The effectiveness of the designed SPD-NOMA is verified through different system scenarios, power control factors, and chaotic sequence lengths and initial conditions compared with the reference systems. It demonstrates effective PLS as well as robust error performance even when the essential power difference requirement for SIC process is not maintained. Moreover, the utilized chaotic signals offer a huge key-space to significantly enhance the security against brute-force attacks." @default.
- W3120896172 created "2021-01-18" @default.
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- W3120896172 date "2020-10-19" @default.
- W3120896172 modified "2023-09-27" @default.
- W3120896172 title "Chaos-Based Secure Power-Domain NOMA for Wireless Applications" @default.
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- W3120896172 doi "https://doi.org/10.1109/wpmc50192.2020.9309502" @default.
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