Low-Complexity Detection of Permutational Index Modulation for Noncoherent Communications
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arXiv
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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866911037802938368 |
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| author | Vilà-Insa, Marc Martí, Aniol Lamarca, Meritxell Riba, Jaume |
| author_facet | Vilà-Insa, Marc Martí, Aniol Lamarca, Meritxell Riba, Jaume |
| contents | This work presents a massive SIMO scheme for wireless communications with one-shot noncoherent detection. It is based on permutational index modulation over OFDM. Its core principle is to convey information on the ordering in which a fixed collection of values is mapped onto a set of OFDM subcarriers. A spherical code is obtained which provides improved robustness against channel impairments. A simple detector based on the sorting of quadratic metrics of data is proposed. By exploiting statistical channel state information and hardening, it reaches near-ML error performance with a low-complexity implementation. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2504_02946 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Low-Complexity Detection of Permutational Index Modulation for Noncoherent Communications Vilà-Insa, Marc Martí, Aniol Lamarca, Meritxell Riba, Jaume Information Theory Signal Processing 94A13 E.4 This work presents a massive SIMO scheme for wireless communications with one-shot noncoherent detection. It is based on permutational index modulation over OFDM. Its core principle is to convey information on the ordering in which a fixed collection of values is mapped onto a set of OFDM subcarriers. A spherical code is obtained which provides improved robustness against channel impairments. A simple detector based on the sorting of quadratic metrics of data is proposed. By exploiting statistical channel state information and hardening, it reaches near-ML error performance with a low-complexity implementation. |
| title | Low-Complexity Detection of Permutational Index Modulation for Noncoherent Communications |
| topic | Information Theory Signal Processing 94A13 E.4 |
| url | https://arxiv.org/abs/2504.02946 |