Applying a unitary quadratic-phase transform to Zak-OTFS pulsones produces an orthonormal CAZAC basis that lowers per-element PAPR by 5.6 dB while preserving channel estimation and bit error performance.
Orthogonal Time Frequency Spa ce Modulation,
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Zak-OTFS with Spread Carrier Waveforms
Applying a unitary quadratic-phase transform to Zak-OTFS pulsones produces an orthonormal CAZAC basis that lowers per-element PAPR by 5.6 dB while preserving channel estimation and bit error performance.