On the performance of NOMA-based cooperative relaying systems over Rician fading channels

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Authors Ruicheng Jiao, Linglong Dai, Jiayi Zhang, Richard MacKenzie, Mo Hao
Journal/Conference Name IEEE Transactions on Vehicular Technology
Paper Category
Paper Abstract Non-orthogonal multiple access (NOMA) is a promising technique for the fifth generation (5G) wireless communications. As users with good channel conditions can serve as relays to enhance the system performance by using successive interference cancellation (SIC), the integration of NOMA and cooperative relaying has recently attracted increasing interests. In this paper, a NOMA-based cooperative relaying system is studied, and an analytical framework is developed to evaluate its performance. Specifically, the performance of NOMA over Rician fading channels is studied, and the exact expression of the average achievable rate is derived. Moreover, we also propose an approximation method to calculate the achievable rate by using the Gauss–Chebyshev Integration. Numerical results confirm that our derived analytical results match well with the Monte Carlo simulations.
Date of publication 2017
Code Programming Language MATLAB

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