Pulse Shape, Excess Bandwidth, and Timing Error Sensitivity in PRS Systems

In this correspondence, the effect of pulse shape on the performance of nonminimum bandwidth partial response signaling (PRS) systems is studied, using the measures of speed tolerance, eye width, and robustness to sampling phase jitter. In general, in modified duobinary and dicode systems, linear rolloff pulse shaping performs better than raised cosine rolloff, while the raised cosine rolloff pulse spectrum is better in the duobinary system.