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arXiv · 2609.38935

Distributed Power Control for Equal-Priority NGSO Mega-Constellation Coexistence

Hao Yuan·Shuang Zheng·Heying Cao·Xing Zhang
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Abstract

Two non-geostationary orbit (NGSO) mega-constellations over shared spectrum leads to inter-constellation interference. Existing mitigation mainly relies on frequency/time partitioning, spatial isolation and satellite selection. However, these approaches may sacrifice resource reuse or be constrained by spatial geometry. To enable interference mitigation without centralized coordination, this letter investigates distributed power control for independent, equal-priority NGSO operators. We formulate the interaction as a non-cooperative game and propose a distributed water-filling best response using local serving-channel estimates and aggregate interference measurements. Pure-strategy Nash equilibrium existence and a weighted spectral-norm sufficient condition for uniqueness and convergence are established. Simulation results demonstrate utility gains of 3.91\% over uncoordinated transmission with 20 active beams.

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Hao Yuan, Shuang Zheng, Heying Cao, Xing Zhang. 2026-10-02. Distributed Power Control for Equal-Priority NGSO Mega-Constellation Coexistence. https://arxiv.org/abs/2609.38935

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