Wavenumber-Division Multiplexing in Holographic MIMO with NLoS Channels
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arXiv
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| Autores principales: | , , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| _version_ | 1866909939813842944 |
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| author | Prajapati, Ashutosh Dharmawansa, Prathapasinghe Di Renzo, Marco Atzeni, Italo |
| author_facet | Prajapati, Ashutosh Dharmawansa, Prathapasinghe Di Renzo, Marco Atzeni, Italo |
| contents | Wavenumber-division multiplexing (WDM) was introduced as a counterpart of orthogonal frequency-division multiplexing in the spatial-frequency domain for line-of-sight holographic multiple-input multiple-output (MIMO) systems. In this paper, we extend WDM to holographic MIMO channels with non-line-of-sight (NLoS) propagation. We show that applying WDM to the NLoS channel yields the corresponding angular-domain representation, which we characterize through the power spectral factor and power spectral density. We further obtain a closed-form characterization for the case of isotropic scattering, recovering Jakes' isotropic model. The analysis is complemented by numerical results evaluating the degrees of freedom and ergodic capacity under both isotropic and non-isotropic scattering. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_02245 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Wavenumber-Division Multiplexing in Holographic MIMO with NLoS Channels Prajapati, Ashutosh Dharmawansa, Prathapasinghe Di Renzo, Marco Atzeni, Italo Signal Processing Wavenumber-division multiplexing (WDM) was introduced as a counterpart of orthogonal frequency-division multiplexing in the spatial-frequency domain for line-of-sight holographic multiple-input multiple-output (MIMO) systems. In this paper, we extend WDM to holographic MIMO channels with non-line-of-sight (NLoS) propagation. We show that applying WDM to the NLoS channel yields the corresponding angular-domain representation, which we characterize through the power spectral factor and power spectral density. We further obtain a closed-form characterization for the case of isotropic scattering, recovering Jakes' isotropic model. The analysis is complemented by numerical results evaluating the degrees of freedom and ergodic capacity under both isotropic and non-isotropic scattering. |
| title | Wavenumber-Division Multiplexing in Holographic MIMO with NLoS Channels |
| topic | Signal Processing |
| url | https://arxiv.org/abs/2512.02245 |