430 citations · 910 across the 97 of their papers we have counts for
10 papers · 1 filter
Energy Efficiency of Massive Random Access in MIMO Quasi-Static Rayleigh Fading Channels with Finite Blocklength
Junyuan Gao, Yongpeng Wu, Shuo Shao +2
This paper considers the massive random access problem in MIMO quasi-static Rayleigh fading channels. Specifically, we derive achievability and converse bounds on the minimum energ…
Asynchronous RIS-assisted Localization: A Comprehensive Analysis of Fundamental Limits
Ziyi Gong, Liang Wu, Zaichen Zhang +3
The reconfigurable intelligent surface (RIS) has drawn considerable attention for its ability to enhance the performance of not only the wireless communication but also the indoor…
Linear MIMO Precoders Design for Finite Alphabet Inputs via Model-Free Training
Chen Cao, Biqian Feng, Yongpeng Wu +2
This paper investigates a novel method for designing linear precoders with finite alphabet inputs based on autoencoders (AE) without the knowledge of the channel model. By model-fr…
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…
Symbol-wise Puncturing for HARQ Integration with Probabilistic Amplitude Shaping
Li Shen, Yongpeng Wu, Derrick Wing Kwan Ng +2
In this letter, we propose a symbol-wise puncturing scheme to support hybrid automatic repeat request (HARQ) integrated probabilistic amplitude shaping (PAS). To prevent the probab…
Enhanced Preamble Based MAC Mechanism for IIoT-oriented PLC Network
Kai Song, Biqian Feng, Yongpeng Wu +1
In this paper, we propose an enhanced preamble based media access control mechanism (E-PMAC), which can be applied in power line communication (PLC) network for Industrial Internet…
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…
Beamforming and Power Allocation for Double-RIS-aided Two-way Directional Modulation Network
Rongen Dong, Feng Shu, Ri-Qing Chen +3
To improve the information exchange rate between Alice and Bob in traditional two-way directional modulation (TWDM) network, a new double-reconfigurable intelligent surface (RIS)-a…
Active Terminal Identification, Channel Estimation, and Signal Detection for Grant-Free NOMA-OTFS in LEO Satellite Internet-of-Things
Xingyu Zhou, Keke Ying, Zhen Gao +5
This paper investigates the massive connectivity of low Earth orbit (LEO) satellite-based Internet-of-Things (IoT) for seamless global coverage. We propose to integrate the grant-f…