4 papers
Score-Based Conditional Flow Models for MIMO Receiver Design with Superimposed Pilots
Ruhao Zhang, Yupeng Li, Yitong Liu +4
Accurate channel state information (CSI) is vital for multiple-input multiple-output (MIMO) systems. However, superimposed pilots (SIP), which reduce overhead, introduce severe pil…
Denoising and Augmentation: A Dual Use of Diffusion Model for Enhanced CSI Recovery
Yupeng Li, Ruhao Zhang, Yitong Liu +3
This letter introduces a dual application of denoising diffusion probabilistic model (DDPM)-based channel estimation algorithm integrating data denoising and augmentation. Denoisin…
Augmenting Channel Simulator and Semi- Supervised Learning for Efficient Indoor Positioning
Yupeng Li, Xinyu Ning, Shijian Gao +4
This work aims to tackle the labor-intensive and resource-consuming task of indoor positioning by proposing an efficient approach. The proposed approach involves the introduction o…
Channel Modeling Aided Dataset Generation for AI-Enabled CSI Feedback: Advances, Challenges, and Solutions
Yupeng Li, Gang Li, Zirui Wen +4
The AI-enabled autoencoder has demonstrated great potential in channel state information (CSI) feedback in frequency division duplex (FDD) multiple input multiple output (MIMO) sys…