Noise-Domain OTFS: Statistical Delay-Doppler Signaling for Future Wireless Networks
Orthogonal time frequency space (OTFS) usually conveys information through deterministic constellation symbols placed on a delay--Doppler (DD) grid. This article develops a different viewpoint, termed \emph{noise-domain OTFS} (ND-OTFS), in which each message selects the covariance of a random DD-domain vector. The resu...