… In this article, we introduce IM-OFDM for UWA communications and propose a hybrid IM-…
introduce IM-OFDM to UWA communications as well as propose a hybrid IM-OFDM system with …

… modulation is used in the form of orthogonal frequency division multiplexing (OFDM) and
adaptive modulation and … for adaptive modulation in underwater acoustic communications," …

… OFDM is considered as a low-complexity alternative to single-carrier modulation for the next
generation of acoustic … of multicarrier modulation is introduced in the UWA communication, …

… modulation such as DCT-OFDM or DHT-OFDM, the subcarrier duration decreases to be half
of the in DFT-OFDM… real signalbased modulation order (Mr) and the DFT-OFDM modulation …

… In this study, multi-user (MU) underwater acoustic communication is investigated using …
division multiplexing (OFDM)-based orthogonal time frequency space modulation (OTFS) systems…

… a multicarrier reliable underwater acoustic (UWA) communication. This … modulation
orthogonal frequency division modulation spread spectrum (IM-OFDM-SS), for UWA communication…

… coherent modulation/detection methods, paying attention to both single-carrier modulation
and … We thus begin our treatment of acoustic communications links by outlining the channel …

… In this paper, we proposed OFDM subcarrier power modulation (OFDM-SPM) as a two-… in
underwater acoustic communication. The system provides a noncoherent modulation method …

… Recall that we consider JANUS, BPSK, QPSK and OFDM as the fixed modulation schemes
… Stojanovic, “Adaptive OFDM modulation for underwater acoustic communications: Design …

… as the main TDS-OFDM drawback in the harsh long-delay underwater acoustic (UWA) …
-domain synchronous index modulation (IM) OFDM to eliminate the TDS-OFDM IBI, explore the …