Transmission of Digital Information Using OFDM
Orthogonal Frequency Division Multiplexing (OFDM) as needed for the wireless communication system is proven. OFDM has already been applied in the wireless LAN and it is also used with the Multiple Input Multiple Output (MIMO) technique to improve the transmission performance in the multi-fading channel. There is now an increasing demand to transmit digital video, internet data in an indoor environment. A solution to avoid the prohibitive cost of installing dedicated wires for this application is to transmit Data over the Power Line (DoPL). However, LV power lines present a very harsh environment for high frequency communication signals. The high frequency signal undergoes attenuation due to line loss and impedance mismatch because of branches and loads.