Transfer function of power line channel — Influence of topology parameters and power line topology estimation

Abstract

The article presents an analysis of the influence of power line characteristic and power line topology parameters on transfer function. The effects of load impedance, branch length, number of branches, and time and frequency selectivity of terminal impedance are shown in this analysis. The analysis results give power line network parameters which have a significant effect on the transfer function and attenuation. Based on this analysis, a method for managing the power line topology is proposed. Index Terms-Power distribution lines, transfer function, topology 1 978-1-4799-7720-8/14/$31.00 ©2014 IEEE

Channel characterisation of cooperative relaying power line communication systems

“…Considering the path from R2 to D, S and R1 jointly behave as a branch. The equivalent impedance at S can be derived from (10) and S is now parallel to R1 and impedance of R1 can be calculated using (1). Furthermore, the impedance of the branch can be calculated as parallel impedance connection of R1 and S as…”

“…S and D now form a branch on the network. The equivalent impedance of S is given in (10), while the impedance of D can be calculated using (5). Therefore, the ABCD matrix for the considered path can be written as…”

“…The quality of service (QoS) in PLC rely on the channel characterisation. Considerable amount of research has been conducted on channel characterisation of power lines, such as [7]- [10],where researchers analysed the effect of notches length and distance between the source and destination on transfer function of the channel. Furthermore, the authors in [11] and [12], have investigated the low voltage single phase channel transfer function and mathematically described it.…”

Electromagnetic compatibility of PLC adapters for in-home/domestic networks

“…In the case of using PLC technology the upper limit of frequency band increased from 30 MHz to 100 MHz which increased a transfer rate. PLC technology, in detail is described and discussed in [1,[6][7][8][9][10][11][12][13][14][15][16] where examples of usage are shown.…”

Optimal Narrowband and Broadband Data Communication Transmission in Low-Voltage Power Line

“…The models presented in [3], [6], among other researchers, employs the top-down approach by using measurement data to model and calculate the parameters of the models. In [1], [2], [4], [7], [8], [18] the bot-tom-up approach is used where the PLC is characterized, parameters calculated and models defined. The paper's objective is to investigate and model the power line characteristics as a channel for data communication in the frequency band of 0-30 MHz using the bottom-up method.…”