It is prominent that underwater acoustic channel has inherently dispersive characteristics for
the communication due to multipath, relative mobility of hydrophones, small-large scale …

Recently, orthogonal time frequency space (OTFS), a two-dimensional modulation
technique designed in delay-Doppler domain, has received significant attention. Generally …

Modulation schemes tolerant to large delay spreads and high Doppler shifts are needed for
reliable underwater acoustic communication (UAC). Due to the sensitivity of orthogonal …

Signaling schemes robust to large Doppler shifts are needed for reliable underwater
acoustic (UWA) communication, and orthogonal time frequency space (OTFS) and …

Recently, orthogonal time frequency space (OTFS), a two-dimensional modulation
technique designed in delay-Doppler domain, has received significant attention. Generally …

Recently, the orthogonal time-frequency space (OTFS) modulation technique has been
proposed to provide reliable communication over time-varying channels, combined with the …

Orthogonal frequency division multiplexing (OFDM) has emerged as a promising modulation
scheme for underwater acoustic (UWA) communications, thanks to its robustness to …

In the past decades, researchers/scientists have paid attention to the physical layer of
underwater communications (UWCs) due to a variety of scientific, military, and civil tasks …

Abstract Orthogonal-frequency-division-multiplexing (OFDM) modulation has been
intensively studied in underwater acoustic (UWA) communications recently for its ability to …

Orthogonal time-frequency-space (OTFS) is a new two-dimensional (2D) modulation
technique that offers reliable communications over time-varying channels. Due to the …