Time Domain Modeling of Powerline Impulsive Noise at Its Source

Hassina Chaouche, Frederic Gauthier, Ahmed Zeddam, Mohamed Tlich, Mohamed Machmoum

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DOI: 10.4236/jemaa.2011.39057                

Abstract

Noise characteristics of an indoor power line network strongly influence the link capability to achieve high data rates. The appliances shared with PLC modems in the same powerline network generate different types of noises, among them the impulsive noises are the main source of interference resulting in signal distortions and bit errors during data transmission. With regard to impulsive noise many models were proposed in the literature and shared the same impulsive noise definition: “unpredictable noises measured in the receiver side”. Authors are, consequently, confronted to model thousands of impulsive noises whose plurality would very likely come from the diversity of paths that the original impulsive noise took. In this paper, an innovative modelling approach is applied to impulsive noises which are studied here directly at their sources. Noise at receiver would be simply the noise model at source convolved by powerline channel block. In the new analytical model, the impulsive noise at source is described by a succession of short pulses, each modeled by a phase-shifted Gaussian. Noises at source are classified into 6 different classes [1], and a noise generator is established for each class.

Keywords

Powerline Communication, Impulsive Noise Modeling, Electrical Appliances

Conflicts of Interest

The authors declare no conflicts of interest.

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