Compared with orthogonal frequency division multiplexing (OFDM) systems. orthogonal time frequency space systems based on bi-orthogonal frequency division multiplexing (OTFS-BFDM) have lower out-of-band emission (OOBE) and better robustness to high-mobility scenarios. but suffer from a higher peak-to-average ratio (PAPR) in large data packets. In this paper. https://www.roneverhart.com/SWW-x-SXSW-Cake-Something-Was-Wrong-2-8x3/