The effect of pulse shaping on the performance of physical-layer network coding with time synchronization errors

Physical-layer network coding (PNC) is a natural extension of network coding in wireless communication networks. PNC utilizes the addition characteristic of the electromagnetic wave rationally and improves the throughout in wireless networks significantly. This paper focuses on a key issue in PNC: the effect of pulse shaping on the performance of time synchronization errors. Analysis and simulation results show that raised cosine pulse with roll-off coefficient of zero can resist power penalty furthest due to time synchronization errors in PNC when adopting pulse shaping without ISI. Also when adopting Gaussian pulse shaping, we can get the best effect with parameter of one on resisting power penalty due to time synchronization errors in PNC.