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arXiv · 2109.11965

RIS-Enabled Localization Continuity Under Near-Field Conditions

Moustafa Rahal·Benoit Denis·Kamran Keykhosravi·Bernard Uguen·Henk Wymeersch
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Abstract

Reconfigurable intelligent surfaces (RISs) have the potential to enable user localization in scenarios where traditional approaches fail. Building on prior work in single-antenna RIS-enabled localization, we investigate the potential to exploit wavefront curvature in geometric near-field conditions. Via a Fisher information analysis, we demonstrate that while near-field improves localization accuracy mostly at short distances when the line-of-sight (LoS) path is present, it could still provide reasonable performance when this path is blocked by relying on a single RIS reflection.

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Moustafa Rahal, Benoit Denis, Kamran Keykhosravi, Bernard Uguen, Henk Wymeersch. 2021-09-24. RIS-Enabled Localization Continuity Under Near-Field Conditions. https://arxiv.org/abs/2109.11965

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