Research on Switched-mode Power Supplies Influence on a Data Rate Over Home Electrical Wiring Networks
DOI:
https://doi.org/10.31861/sisiot2025.2.02013Keywords:
power line communication, broadband access, switched-mode power supply, data rateAbstract
The rapid development of the Internet of Things, one of the most dynamically expanding technological domains worldwide, is the reason for ongoing search for solutions that combine high bandwidth, flexibility, scalability, and cost efficiency for the implementation of such concepts as Smart Grid, Smart Home, and Smart City. Despite the significant progress of wireless technologies and their widespread deployment in the Internet of Things sector, their application cannot always address all challenges, particularly with regard to ensuring a stable signal level in shadow coverage zones. In such cases, the application of Power Line Communication technology is considered appropriate, as it enables broadband access through home electrical wiring network. Data transmission via high-frequency signals is not considered during the design of home electrical wiring network. Therefore, it is an urgent issue to investigate both the propagation characteristics of the electrical wiring medium and the effects of various loads connected to branches on home electrical wiring network parameters. This article is devoted to researching the influence of switch-mode power supplies of different power rates on the data rate of data transmitting systems Broadband over Power Line Communication operating over home electrical wiring network. Calculations of the maximum achievable data rate for a fragment of home electrical wiring network consisting of a single branch formed by segments of ShVVP, a common domestic wire in Ukraine, with copper conductors of 1.5 mm² cross-sectional area were performed. The influence of the input filter parameters and the noise induced by the alternating magnetic field of the SMPS transformer on the maximum achievable data transmission rate in home electrical wiring network was analyzed. The research was performed within a frequency range of 0 to 30 MHz, which corresponds to the 25 MHz–PB band in accordance with ITU-T Recommendation G.9964.
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