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2024 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing, PACRIM 2024

作者： Wang, Fan Jiang, Ruihong Liu, Yuan Bao, Tingnan Peng, Mugen Beijing University of Posts and Telecommunications State Key Laboratory of Networking and Switching Technology Beijing100876 China Research Center for Space Computing System Zhejiang Laboratory Hangzhou311100 China School of Electrical Engineering and Computer Science University of Ottawa OttawaON Canada

ISBN: (纸本)9798350362312

The rising demand for reliable, high-bandwidth satellite communications in far-reach areas drives the integration of low earth orbit (LEO) satellites into future 6G networks. In this paper, we investigate the deployment of reconfigurable intelligent surface (RIS) technology and rate splitting multiple access (RSMA) within LEO satellite systems to improve communication quality and system capacity. We derive closed-form expressions for outage probability (OP) and reliable throughput that validate the theoretical advantages of these technologies under various signal-to-noise ratio conditions. Numerical results demonstrate that, compared with traditional space division multiple access (SDMA) and non-orthogonal multiple access (NOMA) approaches, our RSMA and RIS-integrated framework significantly can reduce OP and enhance reliable throughput with an appropriate power-splitting factor, showcasing its superiority in RIS-enabled satellite communication scenarios. © 2024 IEEE.

关键词： Satellite communication systems

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Joint Design of Radar Receive Filter and Unimodular ISAC Waveform with Sidelobe Level Control

arXiv

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arXiv 2025年

作者： Zhang, Kecheng Liu, Ya-Feng Wang, Zhongbin Yuan, Weijie Keskin, Musa Furkan Wymeersch, Henk Xia, Shuqiang School of System Design and Intelligent Manufacturing The Shenzhen Key Laboratory of Robotics and Computer Vision Southern University of Science and Technology Shenzhen518055 China State Key Laboratory of Scientific and Engineering Computing Institute of Computational Mathematics and Scientific/Engineering Computing Academy of Mathematics and Systems Science Chinese Academy of Sciences Beijing100190 China Department of Electrical Engineering Chalmers University of Technology Gothenburg41296 Sweden ZTE Corporation The State Key Laboratory of Mobile Network and Mobile Multimedia Technology Shenzhen518055 China

Integrated sensing and communication (ISAC) has been considered a key feature of next-generation wireless networks. This paper investigates the joint design of the radar receive filter and dual-functional transmit waveform for the multiple-input multiple-output (MIMO) ISAC system. While optimizing the mean square error (MSE) of the radar receive spatial response and maximizing the achievable rate at the communication receiver, besides the constraints of full-power radar receiving filter and unimodular transmit sequence, we control the maximum range sidelobe level, which is often overlooked in existing ISAC waveform design literature, for better radar imaging performance. To solve the formulated optimization problem with convex and nonconvex constraints, we propose an inexact augmented Lagrangian method (ALM) algorithm. For each subproblem in the proposed inexact ALM algorithm, we custom-design a block successive upper-bound minimization (BSUM) scheme with closed-form solutions for all blocks of variable to enhance the computational efficiency. Convergence analysis shows that the proposed algorithm is guaranteed to provide a stationary and feasible solution. Extensive simulations are performed to investigate the impact of different system parameters on communication and radar imaging performance. Comparison with the existing works shows the superiority of the proposed algorithm. © 2025, CC BY-NC-SA.

关键词： Mean square error

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One-step implementation of a nonadiabatic geometric fSim gate in superconducting circuits

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Physical Review A 2024年第2期110卷 022608-022608页

作者： M.-R. Yun Zheng Shan L.-L. Sun L.-L. Yan Y. Jia Shi-Lei Su Gang Chen School of Physics and Laboratory of Zhongyuan Light Key Laboratory of Materials Physics of Ministry of Education State Key Laboratory of Mathematical Engineering and Advanced Computing Zhengzhou 450001 Henan China College of Physics Institute of Quantum Materials and Physics Key Laboratory for Special Functional Materials of Ministry of Education and School of Materials and Engineering

Due to their significant application in reducing algorithm depth, fSim gates have attracted a lot of attention. However, during the implementation of quantum gates, fluctuations in control parameters and decoherence caused by the environment may lead to a decrease in the fidelity of the gate. Implementing an fSim gate that is robust to these factors in one step remains an unresolved issue. In this paper, we propose a one-step implementation of a nonadiabatic geometric fSim gate composed of a nonadiabatic holonomic controlled-phase (cp) gate and a nonadiabatic noncyclic geometric iswap gate with parallel paths in a tunable superconducting circuit. Compared to the composite nonadiabatic geometric fSim gate composed of a nonadiabatic holonomic cp gate and a nonadiabatic geometric iswap gate, our scheme takes only half the time and demonstrates robustness to parameter fluctuations, as well as to environmental impacts. Moreover, the scheme does not require complex controls, making it very easy to implement in experiments, and can be achieved in various circuit structures. Our scheme may provide a promising path toward quantum computation and simulation.

关键词： Geometric & topological phases Quantum computation Quantum gates

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Benggang segmentation via deep exchanging of digital orthophoto map and digital surface model features

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International Soil and Water Conservation Research 2024年第3期12卷 589-599页

作者： Shengyu Shen Jiasheng Chen Dongbing Cheng Honghu Liu Tong Zhang Department of Soil and Water Conservation Changjiang River Scientific Research Institute of Changjiang Water Resources CommissionWuhan430010China Research Center on Mountain Torrent&Geologic Disaster Prevention Ministry of Water ResourcesWuhan430010China State Key Laboratory of Information Engineering in Surveying Mapping and Remote Sensing(LIESMARS)Wuhan UniversityWuhan430079China

Benggang is a typical fragmented erosional landscape in southern and southeastern China,posing sig-nificant risk to the local residents and economic ***,an efficient and accurate fine-grained segmentation method is crucial for monitoring the Benggang *** this paper,we propose a deep learning-based automatic segmentation method for Benggang by integrating high-resolution Digital Orthophoto Map(DOM)and Digital Surface Model(DSM)*** DSM data is used to extract slope maps,aiming to capture primary morphological *** proposed method consists of a dual-stream convolutional encoder-decoder network in which multiple cascaded convolutional layers and a skip connection scheme are used to extract morphological and visual features of the Benggang *** rich discriminative information in the DOM and slope data is fused by a channel exchanging mechanism that dynamically exchanges the most discriminative features from either the DOM or DSM stream ac-cording to their importance at the channel *** experiments were conducted on a chal-lenging dataset collected from Guangdong Province,China,and the results show that the proposed channel exchanging network based deep fusion method achieves 84.62%IoU in Benggang segmentation,outperforming several existing unimodal or multimodal *** proposed multimodal segmen-tation method greatly improves the efficiency of large-scale discovery of Benggang,and thus is important for the management and restoration of Benggang in southern and southeastern China,as well as the monitoring of other similar erosional landscapes.

关键词： Benggang segmentation Deep fusion Channel exchanging DOM DSM

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MPC-based Docking Control between UUV and Mobile Mothership 7

MPC-based Docking Control between UUV and Mobile Mothership

引用

7th CAA International Conference on Vehicular Control and Intelligence, CVCI 2023

作者： Gong, Peng Zhang, Hao Pan, Guangshan Zhang, Dongjing Xu, Fengwei Yan, Zheping State Key Laboratory of Deep-sea Manned Vehicle China Ship Scientific Research Center Wuxi214082 China College of Intelligent Systems Science and Engineering Harbin Engineering University Harbin150001 China

ISBN: (纸本)9798350340488

With the rapid development of autonomous recycling of unmanned underwater vehicle (UUV), developing new underwater docking solutions to achieve autonomous recycling of parent-child UUV systems has become a hot topic in scientific research. This paper investigates the dynamic docking problem of the parent-child UUV systems. More specifically, a novel dual closed-loop control framework based on model predictive control (MPC) is designed to achieve autonomous docking of UUV. The initial UUV docking control problem is transformed into the design problems of an outer-loop position controller and an inner-loop velocity controller. The design of the inner-loop controller combines the advantages of robust control and backstepping control, and the designed backstepping control law is embedded in the inner-loop controller to address the problems of UUV model parameter uncertainties and external disturbances. Finally, simulation tests verify the effectiveness of the proposed scheme. © 2023 IEEE.

关键词： dynamic docking control model predictive control UUV

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Circuit Simulation and Optimization of Quantum Search Algorithm 6

Circuit Simulation and Optimization of Quantum Search Algori...

引用

6th International Conference on Electronic Information Technology and Computer engineering, EITCE 2022

作者： Liu, Xiaonan Zhao, Chenyan Xie, Haoshan Liu, Zhengyu State Key Laboratory of Mathematical Engineering and Advanced Computing Information Engineering University China School of Computer and Artificial Intelligence ZhengZhou University China

ISBN: (纸本)9781450397148

At present, the scale of quantum computers in the real sense is still small, and quantum simulation has become one of the important ways of quantum theory research, grover quantum search algorithm is suitable for the search problem of disordered database. Firstly, according to the implementation principle of Grover algorithm and Boolean logic relationship, the design idea of multi-objective Oracle is analyzed, based on IBMQ quantum cloud platform, the quantum circuit of Grover algorithm with multi-objective items is simulated. Based on the characteristics of Grover algorithm and the simulation process of quantum gate, the action of multiple identical quantum gates is combined to reduce the update times of probability amplitude and improve the simulation efficiency. The libquantum quantum simulator is used for experiments and the target item is successfully searched, which proves the feasibility of the optimization method and provides reference for the simulation and optimization of other quantum algorithms. © 2022 Association for computing Machinery.

关键词： Timing circuits

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Chloroplast-mimicking nanoreactor for enhanced CO_(2) electrocatalysis

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Science Bulletin 2024年第18期69卷 2820-2824页

作者： Weiguang Maa Wenjun Fan Qinye Li Hefeng Zhang Kaixin Zhu Chenghua Sun Lianzhou Wang Xu Zong Clean Energy Center for Ship Marine Engineering CollegeDalian Maritime UniversityDalian 116026China State Key Laboratory of Catalysis Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian National Laboratory for Clean EnergyThe Collaborative Innovation Center of Chemistry for Energy Materials(iChEM)Dalian 116023China School of Science ComputingEngineering&TechnologySwinburne University of TechnologyHawthorn Vic 3122Australia Department Nanomaterials Centre School of Chemical Engineering and Australian Institute for Bioengineering and NanotechnologyThe University of QueenslandSt LuciaQLD 4072Australia

Producing fuels or chemicals via electrochemical carbon dioxide reduction reaction(CO_(2)RR)with renewable electricity has attracted great research interest due to its potential of alleviating the environmental and energy issues in a carbon–neutral manner[1].The CO_(2)RR is a proton-coupled electron transfer process with the simultaneous participation of multiple protons and electrons[2].

关键词： dioxide neutral carbon

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Riemannian Optimization for Holevo Capacity

arXiv

引用

arXiv 2025年

作者： Zhu, Chengkai Peng, Renfeng Gao, Bin Wang, Xin Guangzhou China State Key Laboratory of Scientific and Engineering Computing Academy of Mathematics and Systems Science Chinese Academy of Sciences Beijing China University of Chinese Academy of Sciences Beijing China

computing the classical capacity of a noisy quantum channel is crucial for understanding the limits of communication over quantum channels. However, its evaluation remains challenging due to the difficulty of computing the Holevo capacity and the even greater difficulty of regularization. In this work, we formulate the computation of the Holevo capacity as an optimization problem on a product manifold constructed from probability distributions and their corresponding pure input states for a quantum channel. A Riemannian gradient descent algorithm is proposed to solve the problem, providing lower bounds on the classical capacity of general quantum channels and outperforming existing methods in numerical experiments in both efficiency and scale. © 2025, CC BY.

关键词： Probability distributions

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The Research and Application of Zero Trust:A Review

SSRN

引用

SSRN 2024年

作者： Meng, Qi Fei, Jinlong Lu, Bin Wang, Xuemeng Wu, Wei Zhang, Zihao Huang, Jing State Key Laboratory of Mathematical Engineering And Advanced Computing PLA Information Engineering University Zhengzhou450000 China

With the emergence of new technologies such as cloud computing, mobile internet, the Internet of Things, and 5G, the internet ecosystem has undergone significant changes. The connections between people and devices have become closer, but they also face more complex and advanced threats. Traditional security concepts and technologies gradually cannot meet the security requirements of the current environment. Zero Trust provides a new paradigm that can effectively solve the current security dilemma in the internet ecosystem. This article starts with the research background of Zero Trust, introduces the emergence and development of Zero Trust, its basic definition, and studies the abstract architecture and deployment models of Zero Trust. It focuses on three key technologies of Zero Trust: identity and access management, micro-segmentation, and software-defined perimeters. The article also summarizes the implementation and practical solutions of Zero Trust by current enterprises, with a detailed explanation of the Google BeyondCorp Zero Trust implementation solution. The latter part of the article emphasizes the research and application of Zero Trust in different academic and application fields, reviewing and summarizing the literature on Zero Trust in academia and applications. Finally, the article summarizes the research and application of Zero Trust and provides an outlook on the future development of Zero Trust. © 2024, The Authors. All rights reserved.

关键词： Ecosystems

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Frontiers in high entropy alloys and high entropy functional materials

引用

Rare Metals 2024年第10期43卷 4639-4776页

作者： Wen-Tao Zhang Xue-Qian Wang Feng-Qi Zhang Xiao-Ya Cui Bing-Bing Fan Jia-Ming Guo Zhi-Min Guo Rui Huang Wen Huang Xu-Bo Li Meng-Ru Li Yan Ma Zhi-Hua Shen Yong-Gang Sun De-Zhuang Wang Fei-Yang Wang Li-Qiang Wang Nan Wang Tian-Li Wang Wei Wang Xiao-Yang Wang Yi-Han Wang Fu-Jie Yu Yu-Zhen Yin Ling-Kun Zhang Yi Zhang Jian-Yang Zhang Qi Zhao Yu-Ping Zhao Xin-Dong Zhu Yasir Sohail Ya-Nan Chen Tao Feng Qi-Long Gao Hai-Yan He Yong-Jiang Huang Zeng-Bao Jiao Hua Ji Yao Jiang Qiang Li Xiao-Ming Li Wei-Bing Liao Huai-Jun Lin Hui Liu Qi Liu Qing-Feng Liu Wei-Di Liu Xiong-Jun Liu Yang Lu Yi-Ping Lu Wen Ma Xue-Fei Miao Jie Pan Qing Wang Hong-Hui Wu Yuan Wu Tao Yang Wei-Ming Yang Qian Yu Jin-Yu Zhang Zhi-Gang Chen Liang Mao Yang Ren Bao-Long Shen Xun-Li Wang Zhe Jia He Zhu Zhen-Duo Wu Si Lan School of Materials Science and Engineering Nanjing University of Science and TechnologyNanjing 210094China Jiangsu Key Laboratory for Advanced Metallic Materials School of Materials Science and EngineeringSoutheast UniversityNanjing 211189China Department of Physics City University of Hong KongHongKong 999077China School of Materials Science and Engineering Tianjin UniversityTianjin 300072China School of Physics and Microelectronics Zhengzhou UniversityZhengzhou 450001China Department of Mechanical Engineering Research Institute for Advanced ManufacturingThe Hong Kong Polytechnic UniversityHong Kong 100872China Center of Electron Microscopy and State Key Laboratory of Silicon Materials School of Materials Science and EngineeringZhejiang UniversityHangzhou 310027China Key Laboratory of Solidification Control and Digital Preparation Technology(Liaoning Province) School of Materials Science and EngineeringDalian University of TechnologyDalian 116024China Institute of Advanced Wear&Corrosion Resistance and Functional Materials Jinan UniversityGuangzhou 510632China School of Mechanics and Civil Engineering China University of Mining and TechnologyXuzhou 221116China School of Physical Sciences Great Bay UniversityDongguan 523000China School of Materials Science and Engineering Harbin Institute of TechnologyHarbin 150001China State Key Laboratory of Materials-Oriented Chemical Engineering College of Chemical EngineeringNanjing Tech UniversityNanjing 211816China Beijing Advanced Innovation Center for Materials Genome Engineering Research Institute for Carbon NeutralityUniversity of Science and Technology BeijingBeijing 100083China Department of Mechanical Engineering The University of Hong KongHong Kong 999077China School of Computing Macquarie UniversitySydney 2113Australia Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province College of Physics and Optoelectronic EngineeringShenzhen UniversityShenzhen 518060China State Key Laborato

Owing to their exceptional properties,high-entropy alloys(HEAs)and high-entropy materials have emerged as promising research areas and shown diverse ***,the recent advances in the field are comprehensively reviewed,organized into five *** first section introduces the background of HEAs,covering their definition,significance,application prospects,basic properties,design principles,and *** subsequent section focuses on cutting-edge high-entropy structural materials,highlighting developments such as nanostructured alloys,grain boundary engineering,eutectic systems,cryogenic alloys,thin films,micro-nano-lattice structures,additive manufacturing,high entropy metallic glasses,nano-precipitate strengthened alloys,composition modulation,alloy fibers,and refractory *** the following section,the emphasis shifts to functional materials,exploring HEAs as catalysts,magneto-caloric materials,corrosion-resistant alloys,radiation-resistant alloys,hydrogen storage systems,and materials for ***,the review encompasses functional high-entropy materials outside the realm of alloys,including thermoelectric,quantum dots,nanooxide catalysts,energy storage materials,negative thermal expansion ceramics,and high-entropy wave absorption *** paper concludes with an outlook,discussing future directions and potential growth areas in the *** this comprehensive review,researchers,engineers,and scientists may gain valuable insights into the recent progress and opportunities for further exploration in the exciting domains of high-entropy alloys and functional materials.

关键词： High entropy alloys Cutting-edge structural materials Cutting-edgefunctional materials

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