Phase-Rotated Symbol Spreading for Scalable Rydberg Atomic-MIMO Detection
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arXiv
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| Hauptverfasser: | , , |
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| Format: | Preprint |
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2026
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| _version_ | 1866914278072647680 |
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| author | Liu, Jiuyu Ma, Yi Tafazolli, Rahim |
| author_facet | Liu, Jiuyu Ma, Yi Tafazolli, Rahim |
| contents | Multiple-input multiple-output (MIMO) systems using Rydberg atomic (RA) receivers face significant scalability challenges in signal detection due to their nonlinear signal models. This letter proposes phase-rotated symbol spreading (PRSS), which transmits each symbol across two consecutive time slots with an optimal π/2 phase offset. PRSS enables reconstruction of an effective linear signal model while maintaining spectral efficiency and facilitating the use of conventional RF-MIMO detection algorithms. Simulation results demonstrate that PRSS achieves greater than 2.5 dB and 10 dB bit error rate improvements compared to current single-transmission methods when employing optimal exhaustive search and low-complexity sub-optimal detection methods, respectively. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_17838 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Phase-Rotated Symbol Spreading for Scalable Rydberg Atomic-MIMO Detection Liu, Jiuyu Ma, Yi Tafazolli, Rahim Information Theory Signal Processing Multiple-input multiple-output (MIMO) systems using Rydberg atomic (RA) receivers face significant scalability challenges in signal detection due to their nonlinear signal models. This letter proposes phase-rotated symbol spreading (PRSS), which transmits each symbol across two consecutive time slots with an optimal π/2 phase offset. PRSS enables reconstruction of an effective linear signal model while maintaining spectral efficiency and facilitating the use of conventional RF-MIMO detection algorithms. Simulation results demonstrate that PRSS achieves greater than 2.5 dB and 10 dB bit error rate improvements compared to current single-transmission methods when employing optimal exhaustive search and low-complexity sub-optimal detection methods, respectively. |
| title | Phase-Rotated Symbol Spreading for Scalable Rydberg Atomic-MIMO Detection |
| topic | Information Theory Signal Processing |
| url | https://arxiv.org/abs/2601.17838 |