19 citations · 20 across the 34 of their papers we have counts for
12 papers · 1 filter
Detecting Abrupt Change of Channel Covariance Matrix in IRS-Assisted Communication
Runnan Liu, Liang Liu, Yin Xu +3
The knowledge of channel covariance matrices is crucial to the design of intelligent reflecting surface (IRS) assisted communication. However, channel covariance matrices may chang…
Capacity-based Spatial Modulation Constellation and Pre-scaling Design
Xinghao Guo, Hanjiang Hong, Yin Xu +3
Spatial Modulation (SM) can utilize the index of the transmit antenna (TA) to transmit additional information. In this paper, to improve the performance of SM, a non-uniform conste…
RIS-Aided Receive Generalized Spatial Modulation Design with Reflecting Modulation
Xinghao Guo, Yin Xu, Hanjiang Hong +5
Spatial modulation (SM) transmits additional information bits by the selection of antennas. Generalized spatial modulation (GSM), as an advanced type of SM, can be divided into div…
CDDM: Channel Denoising Diffusion Models for Wireless Semantic Communications
Tong Wu, Zhiyong Chen, Dazhi He +4
Diffusion models (DM) can gradually learn to remove noise, which have been widely used in artificial intelligence generated content (AIGC) in recent years. The property of DM for e…
Communication-Efficient Framework for Distributed Image Semantic Wireless Transmission
Bingyan Xie, Yongpeng Wu, Yuxuan Shi +2
Multi-node communication, which refers to the interaction among multiple devices, has attracted lots of attention in many Internet-of-Things (IoT) scenarios. However, its huge amou…
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…
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…
Fusion-Based Multi-User Semantic Communications for Wireless Image Transmission over Degraded Broadcast Channels
Tong Wu, Zhiyong Chen, Meixia Tao +2
Degraded broadcast channels (DBC) are a typical multi-user communications scenario. There exist classic transmission methods, such as superposition coding with successive interfere…
CDDM: Channel Denoising Diffusion Models for Wireless Communications
Tong Wu, Zhiyong Chen, Dazhi He +4
Diffusion models (DM) can gradually learn to remove noise, which have been widely used in artificial intelligence generated content (AIGC) in recent years. The property of DM for r…
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…
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…