네트워크 부하 조건의 변화가 채널 상태 정보에 미치는 영향을 고려한 옥내 전력선 통신 채널의 채널 용량 분석

Abstract

We analyze the channel capacity with considering the effect of the loading conditions of indoor PLC networks on channel state information. We consider various numbers of load for two kinds of the networks with regular length branches and a deployed network of indoor PLC. For calculating the channel capacity degradation, two noise scenarios and impedances are considered. From the simulation results, we suggest the robust regression lines for modeling the channel capacity degradation. In the cases of 0 Ω and Z0loads, natural log and linear function curve show the best goodness of fit, respectively. For the deployed indoor PLC network with 0 Ω loads, compared with the networks with regular length branches, the goodness of fit decreases by the amount of 0.12 and 0.15 for low noise and high noise scenarios, respectively. Using the regression lines, we can estimate the channel capacity degradation without measurement.