Fundamentals of the cyclic short-time variation of indoor power-line channels

Cañete, Francisco Javier; Cortes, José A.; Díez, Luis; Entrambasaguas, J.T.; Carmona, José Luis Serrano

doi:10.1109/isplc.2005.1430487

Cited by 45 publications

(28 citation statements)

References 4 publications

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“…In this paper, it is assumed that there are no changes in the devices working state, so the power line network structure is "static." We are interested only in short-term channel variations [10].…”

Section: Indoor Power Network Structurementioning

confidence: 99%

Analysis of the cyclic short-term variation of indoor power line channels

Corripio

Arrabal

Río

et al. 2006

IEEE J. Select. Areas Commun.

211

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Abstract-The purpose of this paper is to analyze the properties of indoor power line communications channels when they are used for broadband transmission. It will be shown that these channels exhibit a short-term variation, due to the fact that high-frequency parameters of electrical devices depend on the instantaneous amplitude of mains voltage. This phenomenon leads to a channel model proposal based on a linear periodically time-varying system and cyclostationary random noise. A measurement system, designed to capture these time variations in real power networks, and some of the most significant results obtained with it, are presented. In addition, a statistical analysis of the measurements performed in several indoor power line scenarios is included, so that the relevance of time variations in actual channels can be evaluated.Index Terms-Broadband communication, cyclostationary noise, frequency response, home appliances measurement, linear periodically time-varying (LPTV) systems, power line communication (PLC), time-varying channels.

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Section: Indoor Power Network Structurementioning

confidence: 99%

Analysis of the cyclic short-term variation of indoor power line channels

Corripio

Arrabal

Río

et al. 2006

IEEE J. Select. Areas Commun.

211

View full text Add to dashboard Cite

show abstract

“…2 is respected. The background noise is assumed to be white Gaussian with a PSD equal to −140 dBm/Hz [17]. To obtain three channel classes with different average SNR, the channel is normalized such that the average path loss at zero frequency is equal to 70, 50 and 30 dB.…”

Section: Numerical Resultsmentioning

confidence: 99%

Adaptive pulse-shaped OFDM with application to in-home power line communications

2011

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We propose an adaptive pulse-shaped orthogonal frequency division multiplexing (OFDM) scheme where the overhead and active sub-channels are adapted to jointly maximize capacity and fulfill the notching mask for coexistence with other devices operating in the same spectrum. The overhead includes the guard interval to partly compensate the channel dispersion, and the roll-off factor used by the shaping window. We show that significant gains are obtained compared to the case of using a fixed guard interval and roll-off factor. To simplify the implementation complexity we also propose to limit the amount of adaptation by deploying a finite set of overhead parameters. Numerical results are reported for typical wideband power line communication indoor channels.

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“…Among many publications in the last decade, the most promising approaches for power line channel modelling were: multipath model [5], two-port network model [6], linear periodically time-variant system [7], time-invariant system [5], and hybrid model based on combining the previous approaches [8].…”

Section: Power Line Channel Modellingmentioning

confidence: 99%

Analysis and Experimental Evaluation of Power Line Transmission Parameters for Power Line Communication

Mlýnek

Misurec

Koutný

et al. 2015

Measurement Science Review

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The article describes a way of evaluating the power line channel frequency response and input impedance by means of the linear time-invariant (LTI) power line generator. Two possible methods are introduced for the calculation of primary parameters: the first method depends on the physical realization and physical dimension of the cable, and the second method is derived from the data provided by typical electrical cable manufacturers. Based on these methods, a comparison of transfer functions was made. This is followed by measurement evaluation and numerical verification on a simple topology.

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Fundamentals of the cyclic short-time variation of indoor power-line channels

Cited by 45 publications

References 4 publications

Analysis of the cyclic short-term variation of indoor power line channels

Analysis of the cyclic short-term variation of indoor power line channels

Adaptive pulse-shaped OFDM with application to in-home power line communications

Analysis and Experimental Evaluation of Power Line Transmission Parameters for Power Line Communication

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