Combined Effect of the Carrier Recovery and Symbol Timing Recovery Error on the PePerformance of QPR and Offset QPR Systems

In this paper we investigate the combined effect of sampling offset and phase error on the probability of error P
e
performance of quadrature partial response (QPR) and offset QPR systems. The Gram-Charlier series expansion method is used to get accurate probability of error expressions. As an example, class 1 and class 4 partial response signaling schemes are examined.