Scatterer Localization Using Multi-Bounce Paths Article Swipe
Yuan Liu
,
Linlong Wu
,
Xuesong Cai
,
M. R. Bhavani Shankar
·
YOU?
·
· 2025
· Open Access
·
· DOI: https://doi.org/10.48550/arxiv.2509.13071
YOU?
·
· 2025
· Open Access
·
· DOI: https://doi.org/10.48550/arxiv.2509.13071
Indoor sensing is challenging because of the multi-bounce effect, spherical wavefront, and spatial nonstationarity (SNS) of the near-field effect. This paper addresses radio-based environment sensing considering these issues. Specifically, graph theory (GT) is used to model the multi-bounce propagation of the near field. In this manner, indoor reflectors/scatterers are modeled as vertices in a propagation graph, the multi-bounce paths are modeled by the edges linking the vertices. Besides, the coupled multipath parameters in the near field, i.e., range and angles, are denoted directly by the coordinates of vertices. Then, the space-alternating generalized expectation-maximization (SAGE) algorithm is adapted to the proposed Graph theory-based dictionary-aided Multi-bounce SAGE (GM-SAGE), where the searching parameters including range and angle of departure/arrival (AoD/AoA) are transformed to the coordinates of scatterers in the graph. The proposed algorithm is validated through measurement-calibrated ray tracing (RT) in a complex indoor office. The results demonstrate that the proposed GM-SAGE can deal with multi-bounce channels.
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- Type
- preprint
- Language
- en
- Landing Page
- http://arxiv.org/abs/2509.13071
- https://arxiv.org/pdf/2509.13071
- OA Status
- green
- OpenAlex ID
- https://openalex.org/W4415317469
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https://doi.org/10.48550/arxiv.2509.13071Digital Object Identifier
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Scatterer Localization Using Multi-Bounce PathsWork title
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preprintOpenAlex work type
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enPrimary language
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2025Year of publication
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2025-09-16Full publication date if available
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Yuan Liu, Linlong Wu, Xuesong Cai, M. R. Bhavani ShankarList of authors in order
- Landing page
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https://arxiv.org/abs/2509.13071Publisher landing page
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greenOpen access status per OpenAlex
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https://arxiv.org/pdf/2509.13071Direct OA link when available
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0Total citation count in OpenAlex
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