{"ID":2871688,"CreatedAt":"2026-06-01T04:54:23.091178241Z","UpdatedAt":"2026-06-01T04:54:23.091178241Z","DeletedAt":null,"paper_url":"https://arxiv.org/abs/2509.10009","arxiv_id":"2509.10009","title":"A General Nonlinear Model for Arbitrary Modulation Formats in the Presence of Inter-Channel Simulated Raman Scattering","abstract":"The four-dimensional nonlinear model is extended to include the inter-channel stimulated Raman scattering, enabling accurate prediction of dual-polarization four-dimensional modulation formats and probabilistically shaped constellations in high-dispersion regimes. The proposed model is validated via comparisons with the split-step Fourier method and enhanced Gaussian noise model.","short_abstract":"The four-dimensional nonlinear model is extended to include the inter-channel stimulated Raman scattering, enabling accurate prediction of dual-polarization four-dimensional modulation formats and probabilistically shaped constellations in high-dispersion regimes. The proposed model is validated via comparisons with th...","url_abs":"https://arxiv.org/abs/2509.10009","url_pdf":"https://arxiv.org/pdf/2509.10009v1","authors":"[\"Zhiwei Liang\",\"Bin Chen\",\"Jiwei Xu\",\"Yi Lei\",\"Qingqing Hu\",\"Fan Zhang\",\"Gabriele Liga\"]","published":"2025-09-12T07:09:12Z","proceeding":"eess.SP","tasks":"[\"eess.SP\"]","methods":"[]","has_code":false}