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Using surfaces to improve satellite signal coverage

Published on:

6 November 2023

Primary Category:

Signal Processing

Paper Authors:

Xingchen Liu,

Liuxun Xue,

Shu Sun,

Meixia Tao

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Key Details

Proposes optimizing RIS placement on buildings to improve satellite coverage

Models environment and derives lower bound for coverage gain

Formulates optimization problem to maximize non-line-of-sight user coverage

Employs genetic algorithm to obtain effective RIS placement strategy

Simulations show significant gains in non-line-of-sight user coverage

AI generated summary

Using surfaces to improve satellite signal coverage

This paper proposes a method to optimize the placement of reconfigurable intelligent surfaces (RIS) on buildings, to improve satellite communication coverage for users blocked by buildings. The surfaces can redirect signals to reach these non-line-of-sight users. After modeling the environment and deriving a theoretical lower bound for coverage improvement, the authors formulate an optimization problem to maximize user coverage across satellite positions. Using a genetic algorithm, they obtain an effective RIS placement strategy. Simulations demonstrate significant gains in non-line-of-sight user coverage probability through this approach.

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