434 citations · 1.1k across the 45 of their papers we have counts for
4 papers · 1 filter
A Unified Joint Optimization of Training Sequences and Transceivers Based on Matrix-Monotonic Optimization
Chengwen Xing, Tao Yu, Jinpeng Song +3
Channel estimation and data transmission constitute the most fundamental functional modules of multiple-input multiple-output (MIMO) communication systems. The underlying key tasks…
LEO Satellite-Enabled Grant-Free Random Access with MIMO-OTFS
Boxiao Shen, Yongpeng Wu, Wenjun Zhang +3
This paper investigates joint channel estimation and device activity detection in the LEO satellite-enabled grant-free random access systems with large differential delay and Doppl…
Massive Unsourced Random Access: Exploiting Angular Domain Sparsity
Xinyu Xie, Yongpeng Wu, Jianping An +5
This paper investigates the unsourced random access (URA) scheme to accommodate numerous machine-type users communicating to a base station equipped with multiple antennas. Existin…
Random Access with Massive MIMO-OTFS in LEO Satellite Communications
Boxiao Shen, Yongpeng Wu, Jianping An +3
This paper considers the joint channel estimation and device activity detection in the grant-free random access systems, where a large number of Internet-of-Things devices intend t…