Evaluation of ISI-Free Parametric Linear Combination Pulses in Digital Communication Systems

Digital communication systems are characterized by having a filter at the transmitter and receiver sides to band limit the transmitted signals and diminish the effects to intersymbol interference (ISI). The optimum parametric linear combination pulse is evaluated at the transmitter and receiver sides by using different evaluation tools. The proposed pulse is evaluated in terms of the bit error rate in the presence of symbol-timing errors. Eye diagrams are presented to visually evaluate the susceptibility of the transmission system to ISI, and the maximum distortion is determined as a numerical measure of performance.