The Effects of Multipath on OFDM Systems for Broadband Power-Line Communications a Case of Medium Voltage Channel
2009 (English)In: World Academy of Science, Engineering and Technology, ISSN 2070-3724, Vol. 54, 205-208 p.Article in journal (Refereed) Published
Power-line networks are widely used today for broadband data transmission. However, due to multipaths within the broadband power line communication (BPLC) systems owing to stochastic changes in the network load impedances, branches, etc., network or channel capacity performances are affected. This paper attempts to investigate the performance of typical medium voltage channels that uses Orthogonal Frequency Division Multiplexing (OFDM) techniques with Quadrature Amplitude Modulation (QAM) sub carriers. It has been observed that when the load impedances are different from line characteristic impedance channel performance decreases. Also as the number of branches in the link between the transmitter and receiver increases a loss of 4dB/branch is found in the signal to noise ratio (SNR). The information presented in the paper
Place, publisher, year, edition, pages
2009. Vol. 54, 205-208 p.
Engineering and Technology
IdentifiersURN: urn:nbn:se:uu:diva-122180OAI: oai:DiVA.org:uu-122180DiVA: diva2:309250