Polarization-Aware Antenna Selection for Joint Radar and Communication in XL-MIMO Systems
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arXiv
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| Autores principales: | , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| _version_ | 1866915216464281600 |
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| author | Naeem, Ahmed Afeef, Liza Arslan, Huseyin |
| author_facet | Naeem, Ahmed Afeef, Liza Arslan, Huseyin |
| contents | A key challenge in dual-polarized multiplexing for joint radar and communication (JRC) systems is cross-polarization (cross-pol) leakage caused by depolarization. In conventional MIMO systems, depolarization arises solely from the channel; however, in XL-MIMO systems, non-stationary properties of the array cause additional polarization shifts at each antenna element, further degrading JRC performance. This paper introduces a channel model incorporating polarization shifts due to the propagation channel and antenna elements in the near-field. We also propose an antenna selection (AS) scheme that dynamically chooses antennas based on polarization imbalance and cross-pol leakage, enhancing spectral efficiency, symbol error rate, and radar detection probability. Simulations show that the proposed AS significantly outperforms traditional methods, providing scalable benefits for XL-MIMO JRC systems. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_21537 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Polarization-Aware Antenna Selection for Joint Radar and Communication in XL-MIMO Systems Naeem, Ahmed Afeef, Liza Arslan, Huseyin Signal Processing A key challenge in dual-polarized multiplexing for joint radar and communication (JRC) systems is cross-polarization (cross-pol) leakage caused by depolarization. In conventional MIMO systems, depolarization arises solely from the channel; however, in XL-MIMO systems, non-stationary properties of the array cause additional polarization shifts at each antenna element, further degrading JRC performance. This paper introduces a channel model incorporating polarization shifts due to the propagation channel and antenna elements in the near-field. We also propose an antenna selection (AS) scheme that dynamically chooses antennas based on polarization imbalance and cross-pol leakage, enhancing spectral efficiency, symbol error rate, and radar detection probability. Simulations show that the proposed AS significantly outperforms traditional methods, providing scalable benefits for XL-MIMO JRC systems. |
| title | Polarization-Aware Antenna Selection for Joint Radar and Communication in XL-MIMO Systems |
| topic | Signal Processing |
| url | https://arxiv.org/abs/2503.21537 |