Resumo

CARDENAS CASTIBLANCO, José Roberto. Improvement of the ATPM technique for interference reduction in systems of broadband by power line in residences. Tecnura [online]. 2014, vol.18, n.41, pp.38-52. ISSN 0123-921X.

The electromagnetic interference produced by the In-House Broadband over Power Line (BPL) communication systems is a technical aspect that is not completely settled. This article presents a technique in which the length and load of the branches of the network, whose topology is bus, are modified to vary the transfer function of the channel between a transmitter and a receiver in order to reducing the Power Spectral Density (PSD) of the transmitter. The algorithm that develops this technique makes use of three theoretical principles found: the gain by distance, the discrete construction of the channel capacity and directionality of the nodes of transmission and reception. A typical network was studied and as a result, combining this technique with the technique known as Adaptive Transmit Power Management (ATPM), there was a reduction of 26.4 dB in the power spectral density.

Palavras-chave : ATPM Technique; mitigation of the interference; variation of transfer functions.

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