Noise detection on the low voltage network PLC channel for direct and indirect connections

Abstract

The power-line communications channel (PLC) is one of the harsh and challenging channels due to heavy load and noise impairments. Sending and/or receiving of data bits over the PLC channel can be easily affected; therefore, several investigations have been conducted to illustrate interference effects over PLC where intermittent noise plays a major role in this type of communications channel. The in-building network is a non-stable system due to the heavy traffic in the wiring system; therefore the power-line communication system gets affected by the internal and external communications factors. In this paper we apply direct connections to the PLC networks in a "unique" method when the 220V mains are on and when off. Indirect connections are also conducted using different types of equipment and connections and results are presented.

Low-Voltage PLC Noise Modelling

“…One of the major advantages of PLC as a mode of data transmission is its ubiquitous infrastructure more so, in low-voltage environments. However, it comes at a cost as it is characterized by heavy traffic in the wiring system resulting in time fluctuations of the PLC noise and is thus regarded as an unstable system with intermittent periodic impulsive noise [12]- [15]. Extensive measurements were carried out to investigate the noise contribution of different loads on the PLC channel in the 1-500 kHz and 2-12 MHz frequency bands in [16].…”