QoS Balancing and Interference Suppression for LEO Beam-Hopping Satellite Networks
To address the problems of quality of service imbalance and inter-satellite interference,a low earth orbitbeam-hopping satellite network is proposed,it can enhance the quality of service through inter-satellite quality of service balancing and interference suppression.Cells with different types of services have varying priority levels,and each cell should be allocated at least one-time slot in a beam-hopping time window.Therefore,a cell quality equalization algorithm to cluster inter-satellite cells is proposed.Since multiple satellites share the spectrum,severe inter-satellite interference diminishes cells'quality of service.Therefore,a dynamic interference suppression algorithm is introduced.Simulation results show that compared tothe maximum elevation angle algorithm,the cell quality equalization algorithm reduces the inter-satellite quality of service disparityby 70%and achieves quality of service balancing.Compared toscenarios without interference suppression,the dynamic interference suppression algorithm ensures that the inter-satellite interference is always below the interference threshold,therefore improving the quality of service levels.
beam hopping technologyinterference suppressionquality of service balancing
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