RIS-assisted Atomic MIMO Receiver
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arXiv
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| Main Authors: | , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866909852904718336 |
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| author | Peng, Qihao Liu, Jiuyu Luo, Qu Ma, Yi Xiao, Pei Elkashlan, Maged Karagiannidis, George K. |
| author_facet | Peng, Qihao Liu, Jiuyu Luo, Qu Ma, Yi Xiao, Pei Elkashlan, Maged Karagiannidis, George K. |
| contents | In this paper, we propose a novel and low-complexity atomic multiple-input multiple-output (MIMO) receiver architecture assisted by a reconfigurable intelligent surface (RIS). By introducing RIS and utilizing pulse amplitude modulation (PAM), the phase of the transmitted signal is effectively aligned with that of the local oscillator (LO), thereby mitigating phase ambiguity and substantially reducing both signal detection complexity and overall receiver complexity.To tackle the resulting non-convex optimization problem, we reformulate it into a tractable form by minimizing the Frobenius norm of an equivalent matrix, which is efficiently solved using an Adam-based gradient descent algorithm. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_15763 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | RIS-assisted Atomic MIMO Receiver Peng, Qihao Liu, Jiuyu Luo, Qu Ma, Yi Xiao, Pei Elkashlan, Maged Karagiannidis, George K. Signal Processing In this paper, we propose a novel and low-complexity atomic multiple-input multiple-output (MIMO) receiver architecture assisted by a reconfigurable intelligent surface (RIS). By introducing RIS and utilizing pulse amplitude modulation (PAM), the phase of the transmitted signal is effectively aligned with that of the local oscillator (LO), thereby mitigating phase ambiguity and substantially reducing both signal detection complexity and overall receiver complexity.To tackle the resulting non-convex optimization problem, we reformulate it into a tractable form by minimizing the Frobenius norm of an equivalent matrix, which is efficiently solved using an Adam-based gradient descent algorithm. |
| title | RIS-assisted Atomic MIMO Receiver |
| topic | Signal Processing |
| url | https://arxiv.org/abs/2510.15763 |