5 papers
Improved Label Design for Timing Synchronization in OFDM Systems against Multi-path Uncertainty
Chaojin Qing, Shuhai Tang, Na Yang +2
Timing synchronization (TS) is vital for orthogonal frequency division multiplexing (OFDM) systems, which makes the discrete Fourier transform (DFT) window start at the inter-symbo…
Metric Learning-Based Timing Synchronization by Using Lightweight Neural Network
Chaojin Qing, Na Yang, Shuhai Tang +3
Timing synchronization (TS) is one of the key tasks in orthogonal frequency division multiplexing (OFDM) systems. However, multi-path uncertainty corrupts the TS correctness, makin…
ELM-based Timing Synchronization for OFDM Systems by Exploiting Computer-aided Training Strategy
Mintao Zhang, Shuhai Tang, Chaojin Qing +3
Due to the implementation bottleneck of training data collection in realistic wireless communications systems, supervised learning-based timing synchronization (TS) is challenged b…
Cascaded ELM-based Joint Frame Synchronization and Channel Estimation over Rician Fading Channel with Hardware Imperfections
Chaojin Qing, Chuangui Rao, Shuhai Tang +2
Due to the interdependency of frame synchronization (FS) and channel estimation (CE), joint FS and CE (JFSCE) schemes are proposed to enhance their functionalities and therefore bo…
CNN-based Timing Synchronization for OFDM Systems Assisted by Initial Path Acquisition in Frequency Selective Fading Channel
Chaojin Qing, Na Yang, Shuhai Tang +3
Multi-path fading seriously affects the accuracy of timing synchronization (TS) in orthogonal frequency division multiplexing (OFDM) systems. To tackle this issue, we propose a con…