Wideband Channel Measurements and Modeling for In-House Power Line Communication

Abstract

This paper reports the results of extensive wideband channel measurements conducted on in-house outlets at 10~30MHz. Two kinds of measurements were performed: impulse response measurements and noise measurements. Impulse responses were obtained in two different time scales: 50 impulse responses taken for 1 minute to see short term variation and for 6 milliseconds to see very short term variation. Noise measurements were carried out to measure background noise, appliance noise and periodic noise. These measurements at a specific outlet are repeated in every other hour over 24 hours. The measured data were carefully reduced and analyzed to extract relevant information to obtain time-varying channel and noise characteristic for in-house power line communication.