Synchronization based on Pseudo-Circular Preamble with Generalized Frequency Division Multiplexing in Vehicular Communication

This paper introduces the concept of using the first subsymbol in the structure of a GFDM symbol as a pseudo circular preamble. Details about the motivation scenario in vehicular communication and the GFDM modulation are presented together with a prime estimation approach for isolating the preamble information from regular data. The concept aims to allow easy adaptation of state-of-the-art techniques developed for OFDM to estimate time offset at every single GFDM symbol. The performance of single-shot estimation of time offset is evaluated in non line of sight scenarios double dispersive wireless channel.