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- W4361014470 abstract "The Orthogonal Frequency Division Multiplexing (OFDM) is widely used in many systems due to its high spectrum utilization. However, the orthogonality of subcarriers in OFDM can be easily destroyed by the inter-carrier interference caused by Doppler frequency offset. In the synchronization of OFDM systems with large Doppler shift, differential cross-correlation is a common method to reduce the influence of frequency offset, but it is sensitive to noise. This paper proposes a differential Zadoff-Chu (DZC) sequence with constant amplitude and good correlation. Most importantly, the sequence obtained by the conjugate multiplication of adjacent symbols of the proposed sequence is a ZC sequence, which has constant amplitude and zero autocorrelation. Simulation results show that the proposed DZC sequence has a significant performance improvement compared with the traditional ZC sequence in the synchronization method based on differential cross-correlation." @default.
- W4361014470 created "2023-03-30" @default.
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- W4361014470 date "2023-01-01" @default.
- W4361014470 modified "2023-10-16" @default.
- W4361014470 title "Differential Synchronization Sequence Design for OFDM Systems with Large Doppler Shift" @default.
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- W4361014470 doi "https://doi.org/10.1007/978-981-19-9825-6_3" @default.
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