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Pré-Publication, Document De Travail Année : 2023

Secrecy energy-efficient multi-user NOMA: closed-form solution to bi-criterion formulation

Résumé

This paper investigates the secrecy energy-efficiency of a multi-user downlink non-orthogonal multiple access (NOMA) transmission in the presence of a passive eavesdropper. The secrecy energy-efficiency, capturing the trade-off between the achievable secrecy sum-rate and the power consumption, is here formulated as a bi-criterion optimization problem that is shown to be convex. As such, the characterization of the Pareto-boundary boils down to maximizing the scalarized trade-off between the secrecy sum-rate and the power consumption, which is solved in closed-form. Finally, this obtained closed-form is exploited to maximize the ratio between the secrecy sum-rate and the power consumption. Our numerical results highlight the relative secrecy energy-efficiency gain between NOMA and OMA that can reach up to 550%.
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Dates et versions

hal-04378649 , version 1 (08-01-2024)
hal-04378649 , version 2 (08-02-2024)

Identifiants

  • HAL Id : hal-04378649 , version 1

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Anne Savard, Giulia Cervia, Miled Alam, Arthur Louchart. Secrecy energy-efficient multi-user NOMA: closed-form solution to bi-criterion formulation. 2023. ⟨hal-04378649v1⟩
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