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- W3108858296 abstract "In this study, we propose a framework for chirp-based communications by exploiting discrete Fourier transform-spread orthogonal frequency division multiplexing (DFT-s-OFDM). We show that a well-designed frequency-domain spectral shaping (FDSS) filter for DFT-s-OFDM can convert its single-carrier nature to a linear combination of chirps circularly translated in the time domain. Also, by exploiting the properties of the Fourier series and Bessel function of the first kind, we analytically obtain the FDSS filter for an arbitrary chirp. We theoretically show that the chirps with low ripples in the frequency domain result in a lower bit-error ratio (BER) via less noise enhancement. We also address the noise enhancement by exploiting the repetitions in the frequency. The proposed framework offers a new way to efficiently synthesize chirps that can be used in Internet-of-Things (IoT), dual-function radar and communication (DFRC) or wireless sensing applications with existing DFT-s-OFDM transceivers." @default.
- W3108858296 created "2020-12-07" @default.
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- W3108858296 date "2021-03-01" @default.
- W3108858296 modified "2023-10-05" @default.
- W3108858296 title "DFT-Spread-OFDM-Based Chirp Transmission" @default.
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- W3108858296 doi "https://doi.org/10.1109/lcomm.2020.3039222" @default.
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