Delay-Doppler Duality: Simplifying Exact Equalization of Zak-OTFS in Time or in Frequency

Mudasir Ahmad Sheikh, Robert Calderbank

The Zak-OTFS carrier waveform is a pulse in the delay-Doppler (DD) domain, and given the input-output (I/O) relation at one DD point in a frame, we can predict the I/O relation at…