Multipath-induced non-orthogonal inter-carrier interference mitigation for underwater acoustic orthogonal multicarrier multiple frequency-shift keying with sweep-spread carrier modulationa).
The orthogonal frequency-division multiplexing multiple frequency-shift keying with sweep-spread carrier (OFDM-MFSK-S2C) suffers from inter-carrier interference (ICI), which is often misaligned with the orthogonal subcarrier grid (i.e., the nominal grid). To address this issue, a refined-grid intra-carrier interference...