Sparse channel estimation in orthogonal frequency division multiplexing (OFDM) systems leverages the fact that multipath radio channels often exhibit only a few significant taps amid many negligible ...

Orthogonal Frequency Division Multiplexing (OFDM) has become the cornerstone of modern broadband wireless communications, owing to its spectral efficiency and robustness to multipath fading. However, ...

To guarantee safe train operations and provide passengers with convenience, such as seamless internet service and robust entertainment options, there is an increasing need for high-reliability, ...