一般居家住宅的低壓電力線網路是相當便利及低廉的有線傳輸媒介，然要在電力線網路上傳送高速的資料，必須對電力線網路進行相當的研究，因為電力線網路本身非為通訊傳輸設計，而其特性更無法與一般通訊媒介相比。
　　本論文著重於電力線通道的研究包括變化不定的阻抗, 衰減和各種雜訊，並以多重路徑的角度建立電力線通道模型，和各種雜訊模型，以利於系統模擬。另一個重點將著重於以 HomePlug 1.0 Specification 所定義的實體層為主，設計一套有效克服因電力線非理想因素所造成的干擾或失真的基頻通訊系統，並且結合不同子頻帶功率分配的方法和錯誤更正碼以克服電力線非理想效應所造成的效能不佳。

　　Intra-building low-voltage power networks are a cheap and convenient medium for digital communications. We should study the power-line network for designing the high-speed power-line communications because its characteristics are improper for communication.
　　In the thesis, we focus on studying the properties of the power-line communication channel, including the varying impedance, the attenuation, and the different types of noises present in it. We have proposed a power-line channel model, including the various kinds of noise models and non-ideal effects of the power-line channel for the effective simulation of the power-line system performance.
　　Another key point is that we will design a high-speed power-line communication physical layer (PHY), based on HomePlug 1.0 Specification, which combines the subcarrier-power allocation technique and the error correct coding scheme to eliminate the interferences and distortions present in a power-line and get the better performance.

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