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Multiple-Input Multiple-Output (MIMO) techniques have recently become an important research field for enhancing the performance of in-home Power Line Communication (PLC) systems by exploiting the additional Protective Earth wire. The development of such systems requires an accurate description of the propagation channel. This paper presents a statistical model for the MIMO PLC channel, based on an extensive set of MIMO channel measurements performed in five houses. In this model, the Phase-Neutral link is described as a multipath channel with frequency variable attenuation, following a formalism first proposed by Zimmermann and extended statistically by Tonello. The full channel matrix is obtained by suitably modifying the path phase. The resulting channel matches our experimental measurements, and reproduces the correlation observed in the measured MIMO channel matrix.

Multiple-Input Multiple-Output (MIMO) techniques have recently become an important research field for enhancing the performance of in-home Power Line Communication (PLC) systems by exploiting the additional Protective Earth wire. The development of such systems requires an accurate description of the channel noise. In this paper we have presented a model for PLC background noise based on an extensive set of measurements. We have adopted the framework of multivariate time series to model the PLC background noise. This paper employs the Vector Autoregressive (VAR) modeling technique to extract noise model parameters from the measured noise. We have verified the accuracy of the noise model by comparing time and frequency domain correlation of measured and modeled noises.

International audienceIn the recent years, the Multiple-Input Multiple-Output (MIMO) techniques have emerged as an important research field for enhancing the throughput of in-home Power Line Communication (PLC) systems by exploiting the additional Protective Earth wire. The development of such systems requires an accurate description of the noise in the propagation channel. This paper presents two statistical models for the background noise found in MIMO PLC channels, based on noise measurements performed in five houses. In the proposed models, the spectral characteristics of MIMO background noise are presented, in 2-150 MHz range, following two existing formalisms for Single-Input Single-Output SISO) PLC noise

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