Fig. 6: NMSE performance with estimated channel.
From: Low-complexity equalization of Zak-OTFS in the frequency domain
A Zadoff-Chu sequence with root 101 in the DD domain10 is used as a spread pilot. FD equalization (FDE) of Zak-OTFS via CGM algorithm with \(k=250,\epsilon =1{0}^{-6},b=\lceil {\nu }_{\max }T\rceil +1\). Simulation parameters: M = 31, N = 37, νp = 30 kHz, data SNR = 20 dB, Veh-A channel with \({\nu }_{\max }=815\) Hz, RRC pulse shaping filter with βτ = βν = 0.6. NMSE improves with turbo iterations and achieve close to perfect CSI performance.
