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Article Dans Une Revue IEEE Communications Letters Année : 2021

Power Allocation for Uplink Multiband Satellite Communications with Nonlinear Impairments

Résumé

In this letter, we develop some generic power allocation strategies in an uplink multiband satellite communications system when nonlinear impairments on the High-Power Amplifier onboard satellite occur. Based on the capacity closed-form expression related to receivers seeing nonlinear interference as a noise, we propose practical and scalable algorithms for three power allocation problems: i) sum-power minimization, ii) maximization of minimum per-user data rate, iii) sum-rate maximization. We show that the solutions mainly rely on Geometric Programming and/or Successive Convex Approximation approaches. The proposed solutions outperform naive approaches while enabling user scalability contrary to optimal brute-force grid search algorithms.
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Dates et versions

hal-03259427 , version 1 (29-09-2023)

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Arthur Louchart, Philippe Ciblat, Charly Poulliat. Power Allocation for Uplink Multiband Satellite Communications with Nonlinear Impairments. IEEE Communications Letters, 2021, 25 (8), pp.2713-2717. ⟨10.1109/LCOMM.2021.3087408⟩. ⟨hal-03259427⟩
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