Hybrid AE and Bi-LSTM-aided sparse multipath channel estimation in OFDM systems

V Kondepogu, B Bhattacharyya - IEEE Access, 2024 - ieeexplore.ieee.org
OFDM is a powerful modulation technique that efficiently transmits high-speed digital data
over frequency-selective fading channels. It divides the signal into multiple subcarriers, each …

GRU-Based Equalization for CP-Free OFDM Over Frequency Selective Channels

M Gümüs, TM Duman - GLOBECOM 2023-2023 IEEE Global …, 2023 - ieeexplore.ieee.org
We consider orthogonal frequency division multi-plexing (OFDM) over frequency-selective
channels without cyclic prefix (CP) insertion. We design a specific recurrent neural network …