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Author

C. Zhang

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2 papers indexed here

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Preprint Sep 2026

Modulation Augmentation and Constellation Shaping for LDPC-Coded QPSK

While constellation shaping improves spectral efficiency, its application to quadrature phase-shift keying (QPSK) remains limited. We address this limitation by incorporating a short shaping code into low-density parity-check (LDPC)-coded QPSK systems. Specifically, a subset of LDPC codeword bits is used as shaping bit...

He-Ping Wan, Joonyoung Cho, Sandesh Rao Mattu et al. · 0 citations
Jul 2026

DFT-p-FDMA Based Chirp Transmission in CP-OFDM for Unified ISAC Waveform Design

We propose an integrated sensing and communications (ISAC) framework that supports chirp signal transmission in CP-OFDM-based multiple access communication systems, enabling efficient coexistence of communication and sensing capabilities. Our framework employs the discrete Fourier transform phase rotated and permuted f...

Fabrizio Carpi, Joonyoung Cho, K. Kim et al. · 0 citations

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