no code implementations • 17 Dec 2024 • Qinyu Zhang, Liang Xu, Jianhao Huang, Tao Yang, Jian Jiao, Ye Wang, Yao Shi, Chiya Zhang, Xingjian Zhang, Ke Zhang, Yupeng Gong, Na Deng, Nan Zhao, Zhen Gao, Shujun Han, Xiaodong Xu, Li You, Dongming Wang, Shan Jiang, Dixian Zhao, Nan Zhang, Liujun Hu, Xiongwen He, Yonghui Li, Xiqi Gao, Xiaohu You
In this context, the distributed satellite information networks (DSIN), exemplified by the cohesive clustered satellites system, have emerged as an innovative architecture, bridging information gaps across diverse satellite systems, such as communication, navigation, and remote sensing, and establishing a unified, open information network paradigm to support resilient space information services.
no code implementations • 3 Dec 2024 • Kou Tian, Chentao Yue, Changyang She, Yonghui Li, Branka Vucetic
An iterative joint training of the DRL-based code designer and the EW-GNN decoder is performed to optimize the end-end encoding and decoding process.
no code implementations • 18 Oct 2024 • Gaoyang Pang, Wanchun Liu, Dusit Niyato, Daniel Quevedo, Branka Vucetic, Yonghui Li
Building on this model, we propose a stochastic cycle-cost-based approach to derive a stability condition for the WHMC system, expressed in terms of wireless channel statistics, human dynamics, and control parameters.
no code implementations • 16 Oct 2024 • Kui Wang, Kazuma Nonomura, Zongdian Li, Tao Yu, Kei Sakaguchi, Omar Hashash, Walid Saad, Changyang She, Yonghui Li
Vehicle-road collaboration is a promising approach for enhancing the safety and efficiency of autonomous driving by extending the intelligence of onboard systems to smart roadside infrastructures.
no code implementations • 15 Oct 2024 • Gaoyang Pang, Wanchun Liu, Dusit Niyato, Branka Vucetic, Yonghui Li
Wireless Networked Control Systems (WNCSs) are essential to Industry 4. 0, enabling flexible control in applications, such as drone swarms and autonomous robots.
no code implementations • 25 Sep 2024 • Yue Xiu, Wanting Lyu, Phee Lep Yeoh, Yonghui Li, Yi Ai, Ning Wei
This paper analyses the security performance of a reconfigurable intelligent surface (RIS)-aided unmanned aerial vehicle (UAV) communication system with integrated sensing and communications (ISAC).
no code implementations • 24 Sep 2024 • Yue Xiu, Songjie Yang, Wanting Lyu, Phee Lep Yeoh, Yonghui Li, Yi Ai
In mobile systems with low-altitude vehicles, integrated sensing and communication (ISAC) is considered an effective approach to increase the transmission rate due to limited spectrum resources.
no code implementations • 22 Sep 2024 • Yue Xiu, Wanting Lyu, Phee Lep Yeoh, Yi Ai, Yonghui Li, Ning Wei
This paper investigates a novel unmanned aerial vehicle (UAV) secure communication system with integrated sensing and communications.
1 code implementation • 22 May 2024 • Haiyao Yu, Changyang She, Yunkai Hu, Geng Wang, Rui Wang, Branka Vucetic, Yonghui Li
Specifically, a graph neural network that is scalable to the number of access points (APs) and mobile devices (MDs) is used for obtaining coarse locations of MDs.
no code implementations • 18 May 2024 • Hosein Zarini, Maryam Farajzadeh Dehkordi, Armin Farhadi, Mohammad Robat Mili, Ali Movaghar, Mehdi Rasti, Yonghui Li, Kai-Kit Wong
In this paper, we propose a LAS-aided multi-antenna UAV to serve ground users in the downlink transmission of the terahertz (THz) band, utilizing rate splitting multiple access (RSMA) for effective beam division multiplexing.
no code implementations • 7 May 2024 • Kui Wang, Changyang She, Zongdian Li, Tao Yu, Yonghui Li, Kei Sakaguchi
Traffic intersections present significant challenges for the safe and efficient maneuvering of connected and automated vehicles (CAVs).
no code implementations • 13 Mar 2024 • inghao Cao, Subhan Khan, Wanchun Liu, Yonghui Li, Branka Vucetic
In addressing wireless networked control systems (WNCS) subject to unexpected packet loss and uncertainties, this paper presents a practical Model Predictive Control (MPC) based control scheme with considerations of of packet dropouts, latency, process noise and measurement noise.
no code implementations • 23 Dec 2023 • Xin Hao, Changyang She, Phee Lep Yeoh, Yuhong Liu, Branka Vucetic, Yonghui Li
To enable the generalization of the GNN, we develop a hybrid-task meta-learning (HML) algorithm that trains the initial parameters of the GNN with different communication scenarios during meta-training.
no code implementations • 13 Dec 2023 • Xin Hao, Phee Lep Yeoh, Changyang She, Branka Vucetic, Yonghui Li
Our designed constrained DRL effectively attains the optimal resource allocations that are adapted to the dynamic DoS requirements.
no code implementations • 13 Dec 2023 • Xin Hao, Phee Lep Yeoh, Yuhong Liu, Changyang She, Branka Vucetic, Yonghui Li
This paper designs a graph neural network (GNN) to improve bandwidth allocations for multiple legitimate wireless users transmitting to a base station in the presence of an eavesdropper.
1 code implementation • 24 Oct 2023 • Yan Lu, Xinzhu Ma, Lei Yang, Tianzhu Zhang, Yating Liu, Qi Chu, Tong He, Yonghui Li, Wanli Ouyang
It models the uncertainty propagation relationship of the geometry projection during training, improving the stability and efficiency of the end-to-end model learning.
no code implementations • 21 Oct 2023 • Lihang Liu, Shanzhuo Zhang, Donglong He, Xianbin Ye, Jingbo Zhou, Xiaonan Zhang, Yaoyao Jiang, Weiming Diao, Hang Yin, Hua Chai, Fan Wang, Jingzhou He, Liang Zheng, Yonghui Li, Xiaomin Fang
In this work, we show that by pre-training on a large-scale docking conformation generated by traditional physics-based docking tools and then fine-tuning with a limited set of experimentally validated receptor-ligand complexes, we can obtain a protein-ligand structure prediction model with outstanding performance.
no code implementations • 12 Sep 2023 • Wanting Lyu, Yue Xiu, Xinyang Li, Songjie Yang, Phee Lep Yeoh, Yonghui Li, Zhongpei Zhang
Furthermore, the trade-off between sensing and communication is analyzed and demonstrated in the simulation results.
no code implementations • 23 May 2023 • Jiazheng Chen, Wanchun Liu, Daniel Quevedo, Yonghui Li, Branka Vucetic
For cyber-physical systems in the 6G era, semantic communications connecting distributed devices for dynamic control and remote state estimation are required to guarantee application-level performance, not merely focus on communication-centric performance.
no code implementations • 24 Dec 2022 • Jiazheng Chen, Wanchun Liu, Daniel E. Quevedo, Saeed R. Khosravirad, Yonghui Li, Branka Vucetic
In addition, we show that the derived structural properties exist in a wide range of dynamic scheduling problems that go beyond remote state estimation.
no code implementations • 20 Nov 2022 • Jiazheng Chen, Wanchun Liu, Daniel E. Quevedo, Yonghui Li, Branka Vucetic
Furthermore, we introduce a structure-enhanced loss function to add penalty to actions that do not follow the policy structure.
no code implementations • 13 Nov 2022 • Kou Tian, Chentao Yue, Changyang She, Yonghui Li, Branka Vucetic
In this work, we propose a novel decoding algorithm for short block codes based on an edge-weighted graph neural network (EW-GNN).
no code implementations • 8 Oct 2022 • Dawei Gao, Qinghua Guo, Guisheng Liao, Yonina C. Eldar, Yonghui Li, Yanguang Yu, Branka Vucetic
Modelling the MIMO system with NN enables the design of NN architectures based on the signal flow of the MIMO system, minimizing the number of NN layers and parameters, which is crucial to achieving efficient training with limited pilot signals.
no code implementations • 3 Oct 2022 • Zihuai Zhao, Wanchun Liu, Daniel E. Quevedo, Yonghui Li, Branka Vucetic
Wireless networked control system (WNCS) connecting sensors, controllers, and actuators via wireless communications is a key enabling technology for highly scalable and low-cost deployment of control systems in the Industry 4. 0 era.
no code implementations • 31 Jul 2022 • Zhengdao Yuan, Qinghua Guo, Yonina C. Eldar, Yonghui Li
We consider matrix factorization (MF) with certain constraints, which finds wide applications in various areas.
no code implementations • 16 Jun 2022 • Huan Ma, Yi Fang, Pingping Chen, Yonghui Li
In this paper, we propose two reconfigurable intelligent surface-aided $M$-ary frequency-modulated differential chaos shift keying (RIS-$M$-FM-DCSK) schemes.
no code implementations • 24 May 2022 • Gaoyang Pang, Wanchun Liu, Yonghui Li, Branka Vucetic
Existing algorithms on dynamic radio resource allocation for remote estimation systems assumed oversimplified wireless communications models and can only work for small-scale settings.
no code implementations • 15 Apr 2022 • Han Meng, Yuexing Peng, Wenbo Wang, Peng Cheng, Yonghui Li, Wei Xiang
This paper proposes a knowledge-and-data-driven graph neural network-based collaboration learning model for reliable aircraft recognition in a heterogeneous radar network.
no code implementations • 31 Mar 2022 • Wanchun Liu, Daniel E. Quevedo, Branka Vucetic, Yonghui Li
In particular, we show that, from a system stability perspective, fast fading channels may be preferable to slow fading ones.
no code implementations • 21 Mar 2022 • Xiangnan Liu, Haijun Zhang, Keping Long, Mingyu Zhou, Yonghui Li, H. Vincent Poor
Then the joint optimization of transmit beamforming and phase-shift design is achieved by gradient-based, primal-dual proximal policy optimization (PPO) in the multi-user multiple-input single-output (MISO) scenario.
no code implementations • 9 Mar 2022 • Wanting Lyu, Yue Xiu, Songjie Yang, Phee Lep Yeoh, Yonghui Li
In this letter, we analyze a terrestrial wireless communication network assisted by an aerial intelligent reflecting surface (IRS).
no code implementations • 25 Feb 2022 • Ayoob Salari, Mahyar Shirvanimoghaddam, Muhammad Basit Shahab, Yonghui Li, Sarah Johnson
This paper studies the joint channel estimation and signal detection for the uplink power-domain non-orthogonal multiple access.
no code implementations • 26 Sep 2021 • Gaoyang Pang, Kang Huang, Daniel E. Quevedo, Branka Vucetic, Yonghui Li, Wanchun Liu
We consider a joint uplink and downlink scheduling problem of a fully distributed wireless networked control system (WNCS) with a limited number of frequency channels.
no code implementations • 26 Aug 2021 • Chang Liu, Weijie Yuan, Shuangyang Li, Xuemeng Liu, Husheng Li, Derrick Wing Kwan Ng, Yonghui Li
Specifically, the convolution and LSTM modules are successively adopted in the proposed HCL-Net to exploit the spatial and temporal dependencies of communication channels to further improve the learning performance.
no code implementations • 23 Aug 2021 • Yifan Liu, Bin Duo, Qingqing Wu, Xiaojun Yuan, Jun Li, Yonghui Li
This paper investigates an aerial reconfigurable intelligent surface (RIS)-aided communication system under the probabilistic line-of-sight (LoS) channel, where an unmanned aerial vehicle (UAV) equipped with an RIS is deployed to assist two ground nodes in their information exchange.
no code implementations • 5 Jun 2021 • Yifan Liu, Bin Duo, Qingqing Wu, Xiaojun Yuan, Yonghui Li
This paper investigates the achievable rate maximization problem of a downlink unmanned aerial vehicle (UAV)-enabled communication system aided by an intelligent omni-surface (IOS).
no code implementations • 9 Apr 2021 • Wanchun Liu, Daniel E. Quevedo, Karl H. Johansson, Branka Vucetic, Yonghui Li
We investigate the stability conditions for remote state estimation of multiple linear time-invariant (LTI) systems over multiple wireless time-varying communication channels.
no code implementations • 29 Mar 2021 • Huan Ma, Yi Fang, Guofa Cai, Guojun Han, Yonghui Li
To further improve the system flexibility, we formulate a generalized modulation scheme and propose scheme II by treating the SFB groups as an additional type of transmission entity.
no code implementations • 17 Dec 2020 • Haile Liu, Yonghui Li, Si Sun, Qi Xin, Shuhu Liu, Xiaoyu Mu, Xun Yuan, Ke Chen, Hao Wang, Kalman Varga, Wenbo Mi, Jiang Yang, Xiao-Dong Zhang
Emerging artificial enzymes with reprogrammed and augmented catalytic activity and substrate selectivity have long been pursued with sustained efforts.
Biological Physics Medical Physics
no code implementations • 13 Sep 2020 • Changyang She, Chengjian Sun, Zhouyou Gu, Yonghui Li, Chenyang Yang, H. Vincent Poor, Branka Vucetic
As one of the key communication scenarios in the 5th and also the 6th generation (6G) of mobile communication networks, ultra-reliable and low-latency communications (URLLC) will be central for the development of various emerging mission-critical applications.
no code implementations • 14 Aug 2020 • Zijie Ji, Phee Lep Yeoh, Deyou Zhang, Gaojie Chen, Yan Zhang, Zunwen He, Hao Yin, Yonghui Li
We propose and analyze secret key generation using intelligent reflecting surface (IRS) assisted wireless communication networks.
no code implementations • 27 Jul 2020 • Yuxin Lu, Peng Cheng, Zhuo Chen, Wai Ho Mow, Yonghui Li, Branka Vucetic
We develop a novel hybrid-cascaded deep neural network (DNN) architecture such that the entire system can be optimized in a holistic manner.
no code implementations • 6 Jul 2020 • Yifan Gu, Qian Wang, He Chen, Yonghui Li, Branka Vucetic
We derive approximate closed-form expressions of the average AoI at the destination, and the average number of forwarding operations at the relay for the DTR policy, by modelling the tangled evolution of age at relay and destination as a Markov chain (MC).
Information Theory Networking and Internet Architecture Signal Processing Information Theory
no code implementations • 23 May 2020 • Zhifang Gu, He Chen, Pingping Xu, Yonghui Li, Branka Vucetic
This method realizes PLA by embedding an authentication signal (tag) into a message signal, referred to as "message-based tag embedding".
no code implementations • 16 May 2020 • Wanchun Liu, Daniel E. Quevedo, Yonghui Li, Karl Henrik Johansson, Branka Vucetic
A smart sensor forwards its local state estimate to a remote estimator over a time-correlated $M$-state Markov fading channel, where the packet drop probability is time-varying and depends on the current fading channel state.
no code implementations • 5 May 2020 • Chandan Pradhan, Ang Li, Lingyang Song, Jun Li, Branka Vucetic, Yonghui Li
In this paper, we focus on the reconfigurable intelligent surface (RIS)-enhanced two-way device-to-device (D2D) multi-pair orthogonal-frequency-division-multiplexing (OFDM) communication systems.
no code implementations • 29 Mar 2020 • Rui Dong, Changyang She, Wibowo Hardjawana, Yonghui Li, Branka Vucetic
To accommodate diverse Quality-of-Service (QoS) requirements in the 5th generation cellular networks, base stations need real-time optimization of radio resources in time-varying network conditions.
no code implementations • 22 Feb 2020 • Changyang She, Rui Dong, Zhouyou Gu, Zhanwei Hou, Yonghui Li, Wibowo Hardjawana, Chenyang Yang, Lingyang Song, Branka Vucetic
In this article, we first summarize how to apply data-driven supervised deep learning and deep reinforcement learning in URLLC, and discuss some open problems of these methods.
no code implementations • 27 Jan 2020 • Yao Xue, Siming Liu, Yonghui Li, Xueming Qian
In addition, proper receptive field sizes are crucial for crowd analysis due to human size variations.
no code implementations • 21 Jul 2019 • Rui Zhang, Peng Cheng, Zhuo Chen, Yonghui Li, Branka Vucetic
Then, based on a novel normalized power level alignment metric, we propose two prediction-transmission structures, namely periodic and non-periodic, for spectrum access (the second part in Stage II), which enable the secondary transmitter (ST) to closely follow the PT power level variation.
no code implementations • 30 Jun 2019 • Rui Dong, Changyang She, Wibowo Hardjawana, Yonghui Li, Branka Vucetic
We propose a deep learning (DL) architecture, where a digital twin of the real network environment is used to train the DL algorithm off-line at a central server.