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| Format: | Preprint |
| Veröffentlicht: |
2024
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| Online-Zugang: | https://arxiv.org/abs/2403.17908 |
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| _version_ | 1866916284625584128 |
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| author | Larsson, Erik G. Vieira, Joao Frenger, Pål |
| author_facet | Larsson, Erik G. Vieira, Joao Frenger, Pål |
| contents | We present a reciprocity calibration method for dual-antenna repeaters in wireless networks. The method uses bi-directional measurements between two network nodes, A and B, where for each bi-directional measurement, the repeaters are configured in different states. The nodes A and B could be two access points in a distributed MIMO system, or they could be a base station and a mobile user terminal, for example. From the calibration measurements, the differences between the repeaters' forward and reverse gains are estimated. The repeaters are then (re-)configured to compensate for these differences such that the repeaters appear, transparently to the network, as reciprocal components of the propagation environment, enabling reciprocity-based beamforming in the network. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2403_17908 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Reciprocity Calibration of Dual-Antenna Repeaters Larsson, Erik G. Vieira, Joao Frenger, Pål Signal Processing Information Theory We present a reciprocity calibration method for dual-antenna repeaters in wireless networks. The method uses bi-directional measurements between two network nodes, A and B, where for each bi-directional measurement, the repeaters are configured in different states. The nodes A and B could be two access points in a distributed MIMO system, or they could be a base station and a mobile user terminal, for example. From the calibration measurements, the differences between the repeaters' forward and reverse gains are estimated. The repeaters are then (re-)configured to compensate for these differences such that the repeaters appear, transparently to the network, as reciprocal components of the propagation environment, enabling reciprocity-based beamforming in the network. |
| title | Reciprocity Calibration of Dual-Antenna Repeaters |
| topic | Signal Processing Information Theory |
| url | https://arxiv.org/abs/2403.17908 |