32 citations · 53 across the 21 of their papers we have counts for
6 papers · 1 filter
Amplitude Prediction from Uplink to Downlink CSI against Receiver Distortion in FDD Systems
Chaojin Qing, Zilong Wang, Qing Ye +2
In frequency division duplex (FDD) massive multiple-input multiple-output (mMIMO) systems, the reciprocity mismatch caused by receiver distortion seriously degrades the amplitude p…
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…
LoS sensing-based superimposed CSI feedback for UAV-Assisted mmWave systems
Chaojin Qing, Qing Ye, Wenhui Liu +3
In unmanned aerial vehicle (UAV)-assisted millimeter wave (mmWave) systems, channel state information (CSI) feedback is critical for the selection of modulation schemes, resource m…