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- W4288055822 abstract "This letter analyzes the ergodic rates of a simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) aided non-orthogonal multiple access (NOMA) system, where the direct links from the base station to cell-edge users are non-line-of-sight due to obstacles, and STAR-RIS is used to provide line-of-sight links to these cell-edge users. By fitting the distribution of the composite channel power gain to a gamma distribution, we derive the closed-form expressions of ergodic rates and high signal-to-noise ratio (SNR) slopes for cell-edge users. Numerical results reveal that 1) the ergodic rates increase with the number of STAR-RIS elements, and the high SNR slopes are fixed as constants; 2) STAR-RIS aided NOMA systems achieve higher ergodic rates than conventional RIS aided NOMA systems." @default.
- W4288055822 created "2022-07-28" @default.
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- W4288055822 date "2022-07-22" @default.
- W4288055822 modified "2023-09-28" @default.
- W4288055822 title "Ergodic Rate Analysis of STAR-RIS Aided NOMA Systems" @default.
- W4288055822 doi "https://doi.org/10.48550/arxiv.2207.11304" @default.
- W4288055822 hasPublicationYear "2022" @default.
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