Hybrid time synchronization and ANN-based M-QAM demodulation for enhanced performance in OFDM and MIMO-OFDM systems. - Moatasem M. E. Kotb; Maha R. Abdel-Haleem; Ashraf Yahya Hassan; Pawel Plawiak; Ashraf S. Mohra (Neural Comput. Appl., 2025)