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eess.SP2026
WHTDM: Walsh-Hadamard Transform Division Multiplexing for Doubly-Selective Channels
Wang Hao, Yuan Zhonghao, Chi Yonggang +3
We propose Walsh-Hadamard Transform Division Multiplexing (WHTDM), a multicarrier waveform that replaces the conventional IFFT/FFT pair in OFDM with a real-valued, unitary Walsh-Ha…
eess.SP2025
CRMD: Complex Robust Modal Decomposition
Wang Hao, Kuang Zhang, Hou Chengyu +4
Compared to real-valued signals, complex-valued signals provide a unique and intuitive representation of the phase of real physical systems and processes, which holds fundamental s…
eess.SP2025
RMD: Robust Modal Decomposition with Constrained Bandwidth
Wang Hao, Kuang Zhang, Hou Chengyu +3
Modal decomposition techniques, such as Empirical Mode Decomposition (EMD), Variational Mode Decomposition (VMD), and Singular Spectrum Analysis (SSA), have advanced time-frequency…