| Texto completo | |
| Autor(es): |
Zischler, Lucas Alves
;
Mello, Darli A. A.
Número total de Autores: 2
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Journal of Lightwave Technology; v. 43, n. 15, p. 11-pg., 2025-08-01. |
| Resumo | |
The information rate of coupled space-division multiplexing (SDM) transmission systems is impaired by the stochastic effects of mode-dependent gain (MDG) and mode-dependent loss (MDL), turning it into a random variable and reducing its average value. In systems operating with minimum mean squared error (MMSE) equalizers and no channel-state information (CSI), co-channel interference further reduces the instantaneous and average information rates. Analytical solutions for the average information rate in MDG- and MDL-impaired systems under strong coupling have been presented in early studies assuming ideal maximum-likelihood (ML) equalization. However, a solution encompassing co-channel interference under MMSE equalization has not been presented yet. In this work, we derive statistical models for the MMSE equalizer coefficients and develop analytical solutions for the post-filtering information rate. We also use these statistical models and analytical solutions to carry out MDG and signal-to-noise ratio (SNR) monitoring in coupled SDM systems. The derived analytical solutions and monitoring techniques are validated by Monte-Carlo simulations, exhibiting a suitable accuracy within practical operational values. (AU) | |
| Processo FAPESP: | 22/11596-0 - EMU científico: aquisição de equipamentos de transmissão e caracterização para enlaces de dados em altíssima velocidade |
| Beneficiário: | Darli Augusto de Arruda Mello |
| Modalidade de apoio: | Auxílio à Pesquisa - Programa Infraestrutura - Científico |