Precoding Design for Multi-User MIMO Joint Communications and Sensing
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arXiv
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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2026
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| _version_ | 1866910005920268288 |
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| author | Muth, Charlotte Chimmalgi, Shrinivas Schmalen, Laurent |
| author_facet | Muth, Charlotte Chimmalgi, Shrinivas Schmalen, Laurent |
| contents | We investigate precoding for multi-user (MU) multiple-input multiple-output (MIMO) joint communications and sensing (JCAS) systems, taking into account the potential interference between sensing and communication channels. We derive indicators for the sensing and communication performance, i.e., the detection probability and the communication signal-to-interference-and-noise ratio (SINR) for general input signals. Our results show that the use of the communication signal for sensing can prevent a loss in communication performance if channel interference occurs, while the kurtosis of the transmit alphabet of the communication signal limits the sensing performance. We present simulation results of example setups. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_20647 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Precoding Design for Multi-User MIMO Joint Communications and Sensing Muth, Charlotte Chimmalgi, Shrinivas Schmalen, Laurent Signal Processing We investigate precoding for multi-user (MU) multiple-input multiple-output (MIMO) joint communications and sensing (JCAS) systems, taking into account the potential interference between sensing and communication channels. We derive indicators for the sensing and communication performance, i.e., the detection probability and the communication signal-to-interference-and-noise ratio (SINR) for general input signals. Our results show that the use of the communication signal for sensing can prevent a loss in communication performance if channel interference occurs, while the kurtosis of the transmit alphabet of the communication signal limits the sensing performance. We present simulation results of example setups. |
| title | Precoding Design for Multi-User MIMO Joint Communications and Sensing |
| topic | Signal Processing |
| url | https://arxiv.org/abs/2601.20647 |