Skip to Main content Skip to Navigation
Theses

Estimation de canaux sélectifs en fréquence par interpolation pour les systèmes DMT : application aux PLC

Abstract : The work presented in this thesis deals with high data rate communications over power lines (Power Line Communications). We propose to adapt a multi-carrier modulation DMT (Discrete Multi-Tone) to the power line channel after having introduced its characteristics. The estimation of the channel frequency response, required for the frequency equalisation as well as bit allocation, is performed using pilot sub-carrier in comb pattern combined with interpolation techniques. We show that a comparison of the different techniques – according to the minimal value of the mean square error – could be based on an original separation of the estimation error. This analysis points out the impact of the pilot signal to noise ratio on the comparison result. In order to optimise the interpolation techniques – according to the minimal value of the bit error rate – avoiding to perform numerous time consuming simulations, we have established a performance indicator – for non-perfect frequency equalisation- close to the MSE and easy to compute. Applied to the power line channel, it becomes a criterion for the optimisation of the power pilot distribution. Results are validated by simulations.
Document type :
Theses
Complete list of metadata

https://hal-uphf.archives-ouvertes.fr/tel-03441446
Contributor : Marie Zoia Connect in order to contact the contributor
Submitted on : Monday, November 22, 2021 - 4:37:44 PM
Last modification on : Saturday, December 18, 2021 - 3:09:29 AM

File

2006VALE0012_BUECHE_DAVID.pdf
Files produced by the author(s)

Identifiers

  • HAL Id : tel-03441446, version 1

Citation

David Buèche. Estimation de canaux sélectifs en fréquence par interpolation pour les systèmes DMT : application aux PLC. Electronique. Université de Valenciennes et du Hainaut-Cambrésis, 2006. Français. ⟨NNT : 2006VALE0012⟩. ⟨tel-03441446⟩

Share

Metrics

Les métriques sont temporairement indisponibles