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Hybrid PLC‐VLC channel model and spectral estimation using a nonparametric approach
Author(s) -
Ndjiongue Alain Richard,
Ferreira Hendrik Christoffel,
Song Jian,
Yang Fang,
Cheng Ling
Publication year - 2017
Publication title -
transactions on emerging telecommunications technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.366
H-Index - 47
ISSN - 2161-3915
DOI - 10.1002/ett.3224
Subject(s) - visible light communication , channel (broadcasting) , power line communication , electronic engineering , computer science , line (geometry) , line of sight , broadband , power (physics) , engineering , telecommunications , electrical engineering , light emitting diode , mathematics , physics , geometry , quantum mechanics , aerospace engineering
Telecommunication engineering may substantially benefit from the integration of power line communication (PLC) and visible light communication (VLC) technologies. This integration is enabled firstly by the ubiquitous nature of PLC and VLC infrastructures and secondly by the recent advances made in both technologies, and it will be effective with the knowledge of the cascaded PLC‐VLC channel. This paper reports on the spectral analysis and estimation of the dual channel for hybrid systems involving PLC and VLC technologies. The channels are statistically analysed using the nonparametric windowed Welch method. Experimental results giving varieties of simulated PLC‐VLC channel are presented. They show the influence of the number of taps (PLC side) and the line‐of‐sight and the non–line‐of‐sight gains (VLC side) on the PLC‐VLC frequency response. It also indicates that the cascaded channel is influenced by propagation distance and room area. We also show the influence of PLC and VLC channel parameters on the gain and notches.