additive-white-gaussian-noise probability-density-function bit-error-rate probability-and-statistics histogram-filter transfer-function non-return-to-zero alternate-mark-inversion power-line-communication intersymbol-interference noisy-communication-channel anticipate-quality-of-transmission graphical-eye-pattern multi-path-propagation narrow-band-notches signal-attenuation statistical-parameters-evaluation inter-symbol-interference star-cable-configuration alcatel-cable-switzerland