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arXiv · 2203.15828

Adaptive Multi-User Clustering and Power Allocation for NOMA Systems with Imperfect SIC

Nemalidinne Siva Mouni·Pavan Reddy M.·Abhinav Kumar·Prabhat K. Upadhyay
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Abstract

Non-orthogonal multiple access (NOMA) is recognized as a promising radio access technique for the next generation wireless systems. We consider a practical downlink NOMA system with imperfect successive interference cancellation and derive bounds on the power allocation factors for a given number of users in each cluster. We propose a minimum signal-to-interference-plus-noise ratio difference criterion between two successive NOMA users in a cluster of users to achieve higher rates than an equivalent orthogonal multiple access (OMA) system. We then propose adaptive multi-user clustering and power allocation algorithms for downlink NOMA systems. Through extensive simulations, we show that the proposed algorithms achieve higher rates than the state-of-the-art algorithms.

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Nemalidinne Siva Mouni, Pavan Reddy M., Abhinav Kumar, Prabhat K. Upadhyay. 2022-03-29. Adaptive Multi-User Clustering and Power Allocation for NOMA Systems with Imperfect SIC. https://arxiv.org/abs/2203.15828

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