#channel estimation
4 papers match
Neural Network-Assisted CLEAN for Channel Modeling in Low-SNR Regimes
Chaofan Deng, Linyu Sun, Jaeho Lee +1
The paper introduces NN-CLEAN, a hybrid method that integrates a multi‑head residual neural network into the iterative CLEAN algorithm to speed up multipath channel parameter estim…
Joint Channel Estimation and Data Detection for Multi-LEO-Satellite Cell-Free OTFS Uplinks
Gangle Sun, Tianhao Liu, Jun Tian +6
The paper proposes a low‑complexity hierarchical receiver that jointly estimates channels and detects data for uplink OTFS transmissions in cell‑free networks of multiple LEO satel…
AFDM-FTN: A Spectrally Efficient Waveform for High-Mobility Communications
Xianle Dai, Qu Luo, Jianguo Li +4
The paper introduces AFDM-FTN, a waveform that combines affine frequency division multiplexing with faster‑than‑Nyquist signaling to boost spectral efficiency in high‑mobility wire…
Positional Attention-based Graph Neural Network for Learning Permutation Non-equivariant Wireless Policies
Baichuan Zhao, Chenyang Yang, Jianyu Zhao +1
The paper introduces a positional attention‑based graph neural network that can learn wireless policies which are not permutation equivariant, improving channel estimation and end‑…