Preliminary analysis of additive noise on outdoor and low voltage electric power grid in Brazil

This work aim at presenting a preliminary analysis of additive noises on outdoor and low voltage electric power grid when the frequency band between 1.7 and 100 MHz is considered. These noises were obtained during a measurement campaign carried out in a Brazilian suburban area comprising a low-income community. The statistical analysis in the time and frequency domains reveal the hardness of such environment for data communication as well as the white holes that can be opportunistic used by PLC systems to operate in the same frequency band of primary users.