UWB Pulse Transmission over Powerline Channel

The EMI/EMC problem of PLC needs to be seen not only from the channel point of view, but also from that of the communication signal to be transmitted. One way by which the EMI problem between different co-existing transmission systems in the wireless environment was addressed is by using a carrier-less UWB pulse transmission. In this paper the advantage of using UWB signals over OFDM signals for PLC applications is outlined, the way forward in adopting the UWB system for the PLC environment is discussed, alternative approach in minimizing the ISI for branched PLC channels is proposed, simulation and measurement results are presented, achievable data rates are indicated, dispersion properties of PLC channels are also analyzed. PLC channel models of up to three branches have been used in the simulation and measurements. The EMI/EMC is the focus behind this work, and hence other communication system implementation and performance measures such as matched filtering, BER, etc, are not part of this work, these subjects have been discussed in detail in the references.