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This paper explores using the first subsymbol in the structure of a GFDM symbol as a pseudo circular preamble. As data and training sequence overlap in the GFDM structure, an initial estimation approach for isolating the preamble information from the data is presented. The concept allows for adaptation of state-of-the-art techniques developed for OFDM in order to estimate time offset at every GFDM...
This work presents a synchronization approach using an embedded training sequence in the payload of a Generalized Frequency Division Multiplexing (GFDM) symbol. The proposal explores the pulse- shaped subsymbol structure of GFDM to design a midamble. Autocorrelation, correlation and false alarm threshold criterion are the tools used for estimation of frequency offset and the time arrival of the first...
Existing non data-aided synchronization schemes for OFDM in particular exploit the redundancy implemented by the CP to perform a time and frequency offset estimation. In general this is more challenging to exploit in non-orthogonal multicarrier systems. This paper gives a short insight of the impact of frequency offset of the performance of the non-orthogonal scheme GFDM and proposes a new estimator...
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