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Outage performance of NOMA over \(\alpha -\mu ,\;\eta -\mu \; and \;\alpha -\eta -\mu \) faded channels with imperfect CSI and interference

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Abstract

For future wireless communications, non-orthogonal multiple access (NOMA) is very promising. This paper evaluates the outage performance of multi-user (MU) NOMA in non-homogeneous fading environment. The closed-form expressions of outage probability are obtained over \(\alpha -\mu \), \(\eta -\mu \) and \(\alpha -\eta -\mu \) faded channels. Here, we obtained the expressions considering the effect of channel estimation error, intra and inter-cellular interference. The obtained expressions can also be used to asses the outage performance of NOMA over common faded channels as special cases. The derived expressions are very helpful to evaluate the impact of interference and channel estimation error on the performance of NOMA with different fading parameters. The analytical results are presented for two users which are at near and edge positions of a Voronoi cell. Finally, simulated results are presented to validate the derived expressions.

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No funding agencies for this work. This work was carried out in the part of my Research program.

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  1. School of Electronics Engineering, VIT-AP, Vijayawada, 522237, India

    Shaik Thaherbasha & Ravindra Dhuli

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  1. Shaik Thaherbasha
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  2. Ravindra Dhuli
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Correspondence to Shaik Thaherbasha.

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The results are done with the help of MATLAB and corresponding files are available with us. Based on the request we will share the relevant source codes.

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Thaherbasha, S., Dhuli, R. Outage performance of NOMA over \(\alpha -\mu ,\;\eta -\mu \; and \;\alpha -\eta -\mu \) faded channels with imperfect CSI and interference. Telecommun Syst 79, 279–294 (2022). https://doi.org/10.1007/s11235-021-00861-3

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