Joint Localization and Synchronization in Downlink Distributed MIMO
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arXiv
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| Auteurs principaux: | , , , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866916688507699200 |
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| author | Dey, Sauradeep Keskin, Musa Furkan Tagliaferri, Dario Seco-Granados, Gonzalo Wymeersch, Henk |
| author_facet | Dey, Sauradeep Keskin, Musa Furkan Tagliaferri, Dario Seco-Granados, Gonzalo Wymeersch, Henk |
| contents | We investigate joint localization and synchronization in the downlink of a distributed multiple-input-multiple-output (D-MIMO) system, aiming to estimate the position and phase offset of a single-antenna user equipment (UE) using downlink transmissions of multiple phase-synchronized, multi-antenna access points (APs). We propose two transmission protocols: sequential (P1) and simultaneous (P2) AP transmissions, together with the ML estimators that either leverage (coherent estimator) or disregard phase information (non-coherent estimator). Simulation results reveal that downlink D-MIMO holds significant potential for high-accuracy localization while showing that P2 provides superior localization performance and reduced transmission latency. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_10087 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Joint Localization and Synchronization in Downlink Distributed MIMO Dey, Sauradeep Keskin, Musa Furkan Tagliaferri, Dario Seco-Granados, Gonzalo Wymeersch, Henk Signal Processing We investigate joint localization and synchronization in the downlink of a distributed multiple-input-multiple-output (D-MIMO) system, aiming to estimate the position and phase offset of a single-antenna user equipment (UE) using downlink transmissions of multiple phase-synchronized, multi-antenna access points (APs). We propose two transmission protocols: sequential (P1) and simultaneous (P2) AP transmissions, together with the ML estimators that either leverage (coherent estimator) or disregard phase information (non-coherent estimator). Simulation results reveal that downlink D-MIMO holds significant potential for high-accuracy localization while showing that P2 provides superior localization performance and reduced transmission latency. |
| title | Joint Localization and Synchronization in Downlink Distributed MIMO |
| topic | Signal Processing |
| url | https://arxiv.org/abs/2504.10087 |