OTFS Performance on Static Multipath Channels

Orthogonal time frequency space (OTFS) modulation is known to achieve excellent error performance in delay-Doppler channels. However, its performance over static multipath channels has never been fully investigated. In this letter, we show that, in static multipath channels, the system structure of OTFS is equivalent to the asymmetric orthogonal frequency division multiplexing (A-OFDM), a scheme p...