PERFORMANCE OF UPLINK-NOMA WITH USER PAIRING AND DATA RATE-BASED POWER SCHEME

Aleksandra Panajotović, Jelena Anastasov, Dejan Milić, Daniela Milović, Nikola Sekulović

DOI Number
https://doi.org/10.22190/FUACR230324003P
First page
029
Last page
038

Abstract


This paper analyzes a performance of uplink power-domain non-orthogonal multiple access (NOMA) system with 2K users in which a resource allocation is taken into consideration. Since the power allocation and user pairing are tightly intertwined, they are considered as a hybrid issue. Accordingly, High-High/High-Low user pairing process precedes date rate-based power allocation. Derived closed-form expressions for the outage probabilities and the sum data rate for uplink power-domain NOMA system over a composite Fisher-Snedecor (F) fading channel are used for an extensive performance evaluation. The impact of different fading/shadowing channel conditions, various users’ positions and their number on the performance metrics is examined. Presented results have high level of generality since the F fading model provides accurate characterization of the multipath/shadowing conditions in numerous communication scenarios of interest.

Keywords

Composite fading channels, non-orthogonal multiple access, sum data rate, outage probability, uplink communication

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References


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DOI: https://doi.org/10.22190/FUACR230324003P

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