430 citations · 910 across the 97 of their papers we have counts for
77 papers · 1 filter
Joint Beamforming and Antenna Movement Design for Moveable Antenna Systems Based on Statistical CSI
Xintai Chen, Biqian Feng, Yongpeng Wu +2
This paper studies a novel movable antenna (MA)-enhanced multiple-input multiple-output (MIMO) system to leverage the corresponding spatial degrees of freedom (DoFs) for improving…
Joint Device Identification, Channel Estimation, and Signal Detection for LEO Satellite-Enabled Random Access
Boxiao Shen, Yongpeng Wu, Wenjun Zhang +2
This paper investigates joint device identification, channel estimation, and signal detection for LEO satellite-enabled grant-free random access, where a multiple-input multipleout…
Downlink Precoding for Cell-free FBMC/OQAM Systems With Asynchronous Reception
Yuhao Qi, Jian Dang, Zaichen Zhang +2
In this work, an efficient precoding design scheme is proposed for downlink cell-free distributed massive multiple-input multiple-output (DM-MIMO) filter bank multi-carrier (FBMC)…
R-PMAC: A Robust Preamble Based MAC Mechanism Applied in Industrial Internet of Things
Kai Song, Biqian Feng, Yongpeng Wu +2
This paper proposes a novel media access control (MAC) mechanism, called the robust preamble-based MAC mechanism (R-PMAC), which can be applied to power line communication (PLC) ne…
Proactive Content Caching Scheme in Urban Vehicular Networks
Biqian Feng, Chenyuan Feng, Daquan Feng +2
Stream media content caching is a key enabling technology to promote the value chain of future urban vehicular networks. Nevertheless, the high mobility of vehicles, intermittency…
A Graph-Based Collision Resolution Scheme for Asynchronous Unsourced Random Access
Tianya Li, Yongpeng Wu, Wenjun Zhang +2
This paper investigates the multiple-input-multiple-output (MIMO) massive unsourced random access in an asynchronous orthogonal frequency division multiplexing (OFDM) system, with…
Semantic-Aware Multi-Terminal Coding for Gaussian Mixture Sources
Yuxuan Shi, Shuo Shao, Yongpeng Wu +2
A novel distributed source coding model which named semantic-aware multi-terminal (MT) source coding is proposed and investigated in the paper, where multiple agents independently…
Energy Efficiency of MIMO Massive Unsourced Random Access with Finite Blocklength
Junyuan Gao, Yongpeng Wu, Tianya Li +1
This paper investigates the energy efficiency of massive unsourced random access~(URA) in multiple-input multiple-output quasi-static Rayleigh fading channels. Specifically, we der…
Excess Distortion Exponent Analysis for Semantic-Aware MIMO Communication Systems
Yuxuan Shi, Shuo Shao, Yongpeng Wu +3
In this paper, the analysis of excess distortion exponent for joint source-channel coding (JSCC) in semantic-aware communication systems is presented. By introducing an unobservabl…
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…
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…
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…
Joint Device Detection, Channel Estimation, and Data Decoding with Collision Resolution for MIMO Massive Unsourced Random Access
Tianya Li, Yongpeng Wu, Mengfan Zheng +5
In this paper, we investigate a joint device activity detection (DAD), channel estimation (CE), and data decoding (DD) algorithm for multiple-input multiple-output (MIMO) massive u…
A Preamble Based MAC Mechanism in Ad-Hoc Network
Chenchao Shi, Biqian Feng, Yongpeng Wu +1
In this paper, we propose a preamble based medium access control (P-MAC) mechanism in Ad-Hoc network. Different from traditional carrier sense multiple access (CSMA) in Ad-Hoc netw…
MIMO Transmission Under Discrete Input Signal Constraints
Jie Feng, Biqian Feng, Yongpeng Wu +2
In this paper, we propose a multiple-input multipleoutput (MIMO) transmission strategy that is closer to the Shannon limit than the existing strategies. Different from most existin…
QoE Driven VR 360 Video Massive MIMO Transmission
Long Teng, Guangtao Zhai, Yongpeng Wu +4
Massive multiple-input and multiple-output (MIMO) enables ultra-high throughput and low latency for tile-based adaptive virtual reality (VR) 360 video transmission in wireless netw…
Joint Optimization for RIS-Assisted Wireless Communications: From Physical and Electromagnetic Perspectives
Xin Cheng, Yan Lin, Weiping Shi +5
Reconfigurable intelligent surfaces (RISs) are envisioned to be a disruptive wireless communication technique that is capable of reconfiguring the wireless propagation environment.…
NOMA for Next-generation Massive IoT: Performance Potential and Technology Directions
Yifei Yuan, Sen Wang, Yongpeng Wu +4
Broader applications of the Internet of Things (IoT) are expected in the forthcoming 6G system, although massive IoT is already a key scenario in 5G, predominantly relying on physi…
Uplink Transmission Design for Crowded Correlated Cell-Free Massive MIMO-OFDM Systems
Junyuan Gao, Yongpeng Wu, Yongjian Wang +2
In cell-free massive multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) systems, user equipments (UEs) are served by many distributed access po…