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BEYOND TERRESTRIAL INFRASTRUCTURE:METEOR BURST COMMUNICATIONS FOR NEXT-GENERATION EMERGENCY COMMUNICATION NETWORKS 认领 引用
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作者 Li Zan Tony QSQuek +1 位作者 Shi Jia Zhang Shengyu 《China Communications》 SCIE EI CSCD 2026年第5期I0002-I0004,共3页
Meteor burst communication(MBC),a niche yet revolutionary wireless communication paradigm,exploits the transient ionized trails generated by meteors ablating in Earth’s atmosphere to enable sporadic yet resilient lon... Meteor burst communication(MBC),a niche yet revolutionary wireless communication paradigm,exploits the transient ionized trails generated by meteors ablating in Earth’s atmosphere to enable sporadic yet resilient long-distance radio links.Known for its exceptional resilience,robustness,and sustained connectivity,MBC holds significant promise for applications in emergency communications,remote area connectivity,military/defense systems,and environmental monitoring.However,the scientific exploration and application of MBC have long been highly challenging.In particular,under the combined influence of multiple physical field factors,the channel experiences superimposed multiple random fading effects,exhibiting bursty,highly time-varying,and strongly random characteristics.This persistent technical challenge has resulted in the absence of a practical statistical channel model for MBC to date. 展开更多
关键词 wireless communication paradigmexploits earth s atmosphere Resilient Long Distance Radio Links Random Fading Effects Emergency Communication Networks emergency communicationsremote area connectivitymilitary defense transient ionized trails Meteor Burst Communication
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Stability analysis of droop-free controlled islanded microgrids with asymmetric communication networks 认领 引用
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作者 Weipeng Liu Upendra Prasad +1 位作者 Yutian Liu Lei Wu 《Cyber-Physical Energy Systems》 2026年第1期53-63,共11页
This paper presents a stability analysis of droop-free controlled islanded microgrids with asymmetric commu-nication networks for proper active power sharing of distributed energy resources(DERs)while maintaining freq... This paper presents a stability analysis of droop-free controlled islanded microgrids with asymmetric commu-nication networks for proper active power sharing of distributed energy resources(DERs)while maintaining frequency stability.With the normalized active power consensus(NAPC)-based droop-free control which can share the load among controllable DERs in proportion to their available capacities,this paper,for the first time,proves the asymptotic stability of NAPC-based droop-free control with asymmetric communication networks,by testifying that all effective eigenvalues have negative real parts.The stability margin under both symmetric and asymmetric designs is analyzed with respect to different system sizes,demonstrating that droop-free control with asymmetric communication networks is more suitable for large system implementations.Moreover,different Laplacian matrix designs of the asymmetric communication network,i.e.,zero columnow sum,are analyzed comparatively.Case studies demonstrate that communication networks with the zero row sum Laplacian matrix will lead to equal normalized active power sharing against disturbances,and a zero column sum can maintain the average nodal frequency at 60 Hz. 展开更多
关键词 Droop-free control Asymptotic stability Asymmetric communication networks Islanded microgrid Distributed energy resources
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Special Topic on AI-Agent Communication Network(ACN):Architecture,Protocols and Key Technologies 认领 引用
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作者 Sun Tao Cui Yong 《ZTE Communications》 2026年第2期1-2,共2页
AI agents,whether embodied as physical entities or existing as software,are developing extremely fast and are believed to be vital for 6G and the whole Internet in the future.The communication network shall evolve to ... AI agents,whether embodied as physical entities or existing as software,are developing extremely fast and are believed to be vital for 6G and the whole Internet in the future.The communication network shall evolve to meet the great potential increase in the number of agents.AI agents are expected to become new users but with quite different traffic patterns,varying quality of service(QoS)requirements,and multi-modality data. 展开更多
关键词 communication network key technologies AI agent software physical entities protocols ai agentswhether architecture
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Key Challenges and Research Directions for Space-Air-Ground Integrated Emergency Communication Networks 认领 引用 被引量：1
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作者 Bo Xu Haitao Zhao +1 位作者 Jiawen Kang Dusit Niyato 《Engineering》 SCIE EI CSCD 2025年第11期52-55,共4页
In recent years,intensified environmental pollution and climate change have increasingly exposed the world to natural disasters such as earthquakes and floods,resulting in substantial economic losses[1].These disaster... In recent years,intensified environmental pollution and climate change have increasingly exposed the world to natural disasters such as earthquakes and floods,resulting in substantial economic losses[1].These disasters frequently damage terrestrial communication infrastructures,making the rapid deployment of emergency communication networks in affected areas critical in increasing rescue efficiency[2]. 展开更多
关键词 research directions space air ground integrated emergency communication networks terrestrial communication infrastructuresmaking key challenges environmental pollution natural disasters climate change
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Dynamic Multi-Target Jamming Channel Allocation and Power Decision-Making in Wireless Communication Networks:A Multi-Agent Deep Reinforcement Learning Approach 认领 引用
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作者 Peng Xiang Xu Hua +4 位作者 Qi Zisen Wang Dan Zhang Yue Rao Ning Gu Wanyi 《China Communications》 SCIE EI CSCD 2025年第5期71-91,共21页
This paper studies the problem of jamming decision-making for dynamic multiple communication links in wireless communication networks(WCNs).We propose a novel jamming channel allocation and power decision-making(JCAPD... This paper studies the problem of jamming decision-making for dynamic multiple communication links in wireless communication networks(WCNs).We propose a novel jamming channel allocation and power decision-making(JCAPD)approach based on multi-agent deep reinforcement learning(MADRL).In high-dynamic and multi-target aviation communication environments,the rapid changes in channels make it difficult for sensors to accurately capture instantaneous channel state information.This poses a challenge to make centralized jamming decisions with single-agent deep reinforcement learning(DRL)approaches.In response,we design a distributed multi-agent decision architecture(DMADA).We formulate multi-jammer resource allocation as a multiagent Markov decision process(MDP)and propose a fingerprint-based double deep Q-Network(FBDDQN)algorithm for solving it.Each jammer functions as an agent that interacts with the environment in this framework.Through the design of a reasonable reward and training mechanism,our approach enables jammers to achieve distributed cooperation,significantly improving the jamming success rate while considering jamming power cost,and reducing the transmission rate of links.Our experimental results show the FBDDQN algorithm is superior to the baseline methods. 展开更多
关键词 jamming resource allocation JCAPD MADRL wireless communication countermeasure wireless communication networks
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When Communication Networks Meet Federated Learning for Intelligence Interconnecting:A Comprehensive Survey and Future Perspective 认领 引用
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作者 Sha Zongxuan Huo Ru +3 位作者 Sun Chuang Wang Shuo Huang Tao F.Richard Yu 《China Communications》 SCIE EI CSCD 2025年第7期74-94,共21页
With the rapid development of network technologies,a large number of deployed edge devices and information systems generate massive amounts of data which provide good support for the advancement of data-driven intelli... With the rapid development of network technologies,a large number of deployed edge devices and information systems generate massive amounts of data which provide good support for the advancement of data-driven intelligent models.However,these data often contain sensitive information of users.Federated learning(FL),as a privacy preservation machine learning setting,allows users to obtain a well-trained model without sending the privacy-sensitive local data to the central server.Despite the promising prospect of FL,several significant research challenges need to be addressed before widespread deployment,including network resource allocation,model security,model convergence,etc.In this paper,we first provide a brief survey on some of these works that have been done on FL and discuss the motivations of the Communication Networks(CNs)and FL to mutually enable each other.We analyze the support of network technologies for FL,which requires frequent communication and emphasizes security,as well as the studies on the intelligence of many network scenarios and the improvement of network performance and security by the methods based on FL.At last,some challenges and broader perspectives are explored. 展开更多
关键词 communication networks federated learning intelligence interconnecting machine learning privacy preservation
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Encoding converters for quantum communication networks 认领 引用
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作者 Hua-Xing Xu Shao-Hua Wang +2 位作者 Ya-Qi Song Ping Zhang Chang-Lei Wang 《Chinese Physics B》 SCIE EI CAS CSCD 2025年第5期64-69,共6页
Quantum communication networks,such as quantum key distribution(QKD)networks,typically employ the measurement-resend mechanism between two users using quantum communication devices based on different quantum encoding ... Quantum communication networks,such as quantum key distribution(QKD)networks,typically employ the measurement-resend mechanism between two users using quantum communication devices based on different quantum encoding types.To achieve direct communication between the devices with different quantum encoding types,in this paper,we propose encoding conversion schemes between the polarization bases(rectilinear,diagonal and circular bases)and the time-bin phase bases(two phase bases and time-bin basis)and design the quantum encoding converters.The theoretical analysis of the encoding conversion schemes is given in detail,and the basis correspondence of encoding conversion and the property of bit flip are revealed.The conversion relationship between polarization bases and time-bin phase bases can be easily selected by controlling a phase shifter.Since no optical switches are used in our scheme,the converter can be operated with high speed.The converters can also be modularized,which may be utilized to realize miniaturization in the future. 展开更多
关键词 quantum communication networks encoding conversion polarization encoding time-bin phase encoding
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Detection and Tracking of a UAV Based on Low-Frequency Communication Network 认领 引用
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作者 Hongmei Shi Yifan Zhou +1 位作者 Mengxin Yang Dan Zeng 《Journal of Beijing Institute of Technology》 EI CAS 2025年第3期231-242,共12页
When tracking a unmanned aerial vehicle(UAV)in complex backgrounds,environmen-tal noise and clutter often obscure it.Traditional radar target tracking algorithms face multiple lim-itations when tracking a UAV,includin... When tracking a unmanned aerial vehicle(UAV)in complex backgrounds,environmen-tal noise and clutter often obscure it.Traditional radar target tracking algorithms face multiple lim-itations when tracking a UAV,including high vulnerability to target occlusion and shape variations,as well as pronounced false alarms and missed detections in low signal-to-noise ratio(SNR)envi-ronments.To address these issues,this paper proposes a UAV detection and tracking algorithm based on a low-frequency communication network.The accuracy and effectiveness of the algorithm are validated through simulation experiments using field-measured point cloud data.Additionally,the key parameters of the algorithm are optimized through a process of selection and comparison,thereby improving the algorithm's precision.The experimental results show that the improved algo-rithm can significantly enhance the detection and tracking performance of the UAV under high clutter density conditions,effectively reduce the false alarm rate and markedly improve overall tracking performance metrics. 展开更多
关键词 unmanned aerial vehicl(UAV)detection and tracking low-frequency communication network field-measurement data
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Call for Papers─Feature Topic Vol.23,No.2,2026 Beyond Terrestrial Infrastructure: Meteor Burst Communications for Next-Generation Emergency Communication Networks 认领 引用
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《China Communications》 SCIE EI CSCD 2025年第8期I0002-I0002,共1页
Meteor Burst Communication(MBC),a niche yet revolutionary wireless communication paradigm,exploits the transient ionized trails generated by meteors ablating in Earth’s atmosphere to enable sporadic yet resilient lon... Meteor Burst Communication(MBC),a niche yet revolutionary wireless communication paradigm,exploits the transient ionized trails generated by meteors ablating in Earth’s atmosphere to enable sporadic yet resilient long-distance radio links.Known for its exceptional resilience,robustness,and sustained connectivity,MBC holds significant promise for applications in emergency communications,remote area connectivity,military/defense systems,and environmental monitoring.However,the scientific exploration and application of MBC have long been highly challenging.In particular,under the combined influence of multiple physical field factors,the channel experiences superimposed multiple random fading effects,exhibiting bursty,highly time-varying,and strongly random characteristics.This persistent technical challenge has resulted in the absence of a practical statistical channel model for MBC to date. 展开更多
关键词 wireless communication paradigmexploits earth s atmosphere Resilient Long Distance Radio Links Emergency Communication Networks Meteor Burst Communications emergency communicationsremote area connectivitymilitary defense transient ionized trails meteor burst communication mbc
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Research on communication between different VPN instances in marine information communication network 认领 引用
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作者 WANG Qi CAI Renhan HAN Zexin 《Marine Science Bulletin》 2025年第1期66-76,共11页
This paper focuses on the research of MPLS VPN technology in the ocean information communication network.Through the analysis of the current situation of the ocean information communication network,the architecture de... This paper focuses on the research of MPLS VPN technology in the ocean information communication network.Through the analysis of the current situation of the ocean information communication network,the architecture design of MPLS VPN technology in the ocean information communication network and the important role of RD value and RT value in the VPN instances,the matching strategies of import RT and export RT of different VPN instances are verified through experiments. 展开更多
关键词 marine information communication network network integration RT(Route-Target)value MPLS VPN RD(Route-Distinguisher)value
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Joint Computing and Communication Resource Allocation for Satellite Communication Networks with Edge Computing 认领 引用 被引量：28
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作者 Shanghong Zhang Gaofeng Cui +1 位作者 Yating Long Weidong Wang 《China Communications》 SCIE EI CSCD 2021年第7期236-252,共17页
Benefit from the enhanced onboard processing capacities and high-speed satellite-terrestrial links,satellite edge computing has been regarded as a promising technique to facilitate the execution of the computation-int... Benefit from the enhanced onboard processing capacities and high-speed satellite-terrestrial links,satellite edge computing has been regarded as a promising technique to facilitate the execution of the computation-intensive applications for satellite communication networks(SCNs).By deploying edge computing servers in satellite and gateway stations,SCNs can achieve significant performance gains of the computing capacities at the expense of extending the dimensions and complexity of resource management.Therefore,in this paper,we investigate the joint computing and communication resource management problem for SCNs to minimize the execution latency of the computation-intensive applications,while two different satellite edge computing scenarios and local execution are considered.Furthermore,the joint computing and communication resource allocation problem for the computation-intensive services is formulated as a mixed-integer programming problem.A game-theoretic and many-to-one matching theorybased scheme(JCCRA-GM)is proposed to achieve an approximate optimal solution.Numerical results show that the proposed method with low complexity can achieve almost the same weight-sum latency as the Brute-force method. 展开更多
关键词 satellite communication networks edge computing resource allocation matching theory
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A Game-Theoretic Perspective on Resource Management for Large-Scale UAV Communication Networks 认领 引用 被引量：14
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作者 Jiaxin Chen Ping Chen +3 位作者 Qihui Wu Yuhua Xu Nan Qi Tao Fang 《China Communications》 SCIE EI CSCD 2021年第1期70-87,共18页
As a result of rapid development in electronics and communication technology,large-scale unmanned aerial vehicles(UAVs)are harnessed for various promising applications in a coordinated manner.Although it poses numerou... As a result of rapid development in electronics and communication technology,large-scale unmanned aerial vehicles(UAVs)are harnessed for various promising applications in a coordinated manner.Although it poses numerous advantages,resource management among various domains in large-scale UAV communication networks is the key challenge to be solved urgently.Specifically,due to the inherent requirements and future development trend,distributed resource management is suitable.In this article,we investigate the resource management problem for large-scale UAV communication networks from game-theoretic perspective which are exactly coincident with the distributed and autonomous manner.By exploring the inherent features,the distinctive challenges are discussed.Then,we explore several gametheoretic models that not only combat the challenges but also have broad application prospects.We provide the basics of each game-theoretic model and discuss the potential applications for resource management in large-scale UAV communication networks.Specifically,mean-field game,graphical game,Stackelberg game,coalition game and potential game are included.After that,we propose two innovative case studies to highlight the feasibility of such novel game-theoretic models.Finally,we give some future research directions to shed light on future opportunities and applications. 展开更多
关键词 large-scale UAV communication networks resource management game-theoretic model
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A Stackelberg Differential Game Based Bandwidth Allocation in Satellite Communication Network 认领 引用 被引量：16
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作者 Jingtao Su Shengsong Yang +1 位作者 Haitao Xu Xianwei Zhou 《China Communications》 SCIE CSCD 2018年第8期205-214,共10页
In this paper, a Stackelberg differential game based approach is proposed to solve the bandwidth allocation problems in satellite communication network. All the satellites are divided into two groups, one has high dow... In this paper, a Stackelberg differential game based approach is proposed to solve the bandwidth allocation problems in satellite communication network. All the satellites are divided into two groups, one has high download requirements, and the other one has low download requirements. Each satellites group has its own controller for bandwidth allocation, and can get payments from the satellites for the allocated resources. The relationships between the controllers and satellites are formed as a Stackelberg game. In our model, differential equation is introduced to describe the bandwidth dynamics for the whole satellite communication network. Combine the differential equation and Stackelberg game together, we can formulate the bandwidth allocation problems in satellite communication network as a Stackelber differential game. The solutions to the proposed game is solved based the Bellman dynamic equations. Numerical simulations are given to prove the effeteness and correctness of the proposed approach. 展开更多
关键词 stackelberg equilibrium bandwidth allocation differential game satellite communication networks
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Generative Adversarial Networks Based Digital Twin Channel Modeling for Intelligent Communication Networks 认领 引用 被引量：11
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作者 Yuxin Zhang Ruisi He +5 位作者 Bo Ai Mi Yang Ruifeng Chen Chenlong Wang Zhengyu Zhang Zhangdui Zhong 《China Communications》 SCIE CSCD 2023年第8期32-43,共12页
Integration of digital twin(DT)and wireless channel provides new solution of channel modeling and simulation,and can assist to design,optimize and evaluate intelligent wireless communication system and networks.With D... Integration of digital twin(DT)and wireless channel provides new solution of channel modeling and simulation,and can assist to design,optimize and evaluate intelligent wireless communication system and networks.With DT channel modeling,the generated channel data can be closer to realistic channel measurements without requiring a prior channel model,and amount of channel data can be significantly increased.Artificial intelligence(AI)based modeling approach shows outstanding performance to solve such problems.In this work,a channel modeling method based on generative adversarial networks is proposed for DT channel,which can generate identical statistical distribution with measured channel.Model validation is conducted by comparing DT channel characteristics with measurements,and results show that DT channel leads to fairly good agreement with measured channel.Finally,a link-layer simulation is implemented based on DT channel.It is found that the proposed DT channel model can be well used to conduct link-layer simulation and its performance is comparable to using measurement data.The observations and results can facilitate the development of DT channel modeling and provide new thoughts for DT channel applications,as well as improving the performance and reliability of intelligent communication networking. 展开更多
关键词 digital twin channel modeling generative adversarial networks intelligent communication networking
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Quantum Communication Networks and Trust Management: A Survey 认领 引用 被引量：10
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作者 Shibin Zhang Yan Chang +5 位作者 Lili Yan Zhiwei Sheng Fan Yang Guihua Han Yuanyuan Huang Jinyue Xia 《Computers, Materials & Continua》 SCIE EI 2019年第9期1145-1174,共30页
This paper summarizes the state of art in quantum communication networks and trust management in recent years.As in the classical networks,trust management is the premise and foundation of quantum secure communication... This paper summarizes the state of art in quantum communication networks and trust management in recent years.As in the classical networks,trust management is the premise and foundation of quantum secure communication and cannot simply be attributed to security issues,therefore the basic and importance of trust management in quantum communication networks should be taken more seriously.Compared with other theories and techniques in quantum communication,the trust of quantum communication and trust management model in quantum communication network environment is still in its initial stage.In this paper,the core technologies of establishing secure and reliable quantum communication networks are categorized and summarized,and the trends of each direction in trust management of quantum communication network are discussed in depth. 展开更多
关键词 Quantum communication quantum communication network trust trust management trust management model
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Load Balancing-Based Routing Optimization Mechanism for Power Communication Networks 认领 引用 被引量：14
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作者 Ningzhe Xing Siya Xu +1 位作者 Sidong Zhang Shaoyong Guo 《China Communications》 SCIE CSCD 2016年第8期169-176,共8页
In power communication networks,it is a challenge to decrease the risk of different services efficiently to improve operation reliability.One of the important factor in reflecting communication risk is service route d... In power communication networks,it is a challenge to decrease the risk of different services efficiently to improve operation reliability.One of the important factor in reflecting communication risk is service route distribution.However,existing routing algorithms do not take into account the degree of importance of services,thereby leading to load unbalancing and increasing the risks of services and networks.A routing optimization mechanism based on load balancing for power communication networks is proposed to address the abovementioned problems.First,the mechanism constructs an evaluation model to evaluate the service and network risk degree using combination of devices,service load,and service characteristics.Second,service weights are determined with modified relative entropy TOPSIS method,and a balanced service routing determination algorithm is proposed.Results of simulations on practical network topology show that the mechanism can optimize the network risk degree and load balancing degree efficiently. 展开更多
关键词 power communication networks load balancing routing optimization
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Distributed wireless quantum communication networks with partially entangled pairs 认领 引用 被引量：15
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作者 余旭涛 张在琛 徐进 《Chinese Physics B》 SCIE EI CAS CSCD 2014年第1期66-73,共8页
Wireless quantum communication networks transfer quantum state by teleportation. Existing research focuses on maximal entangled pairs. In this paper, we analyse the distributed wireless quantum communication networks ... Wireless quantum communication networks transfer quantum state by teleportation. Existing research focuses on maximal entangled pairs. In this paper, we analyse the distributed wireless quantum communication networks with partially entangled pairs. A quantum routing scheme with multi-hop teleportation is proposed. With the proposed scheme, is not necessary for the quantum path to be consistent with the classical path. The quantum path and its associated classical path are established in a distributed way. Direct multi-hop teleportation is conducted on the selected path to transfer a quantum state from the source to the destination. Based on the feature of multi-hop teleportation using partially entangled pairs, if the node number of the quantum path is even, the destination node will add another teleportation at itself. We simulated the performance of distributed wireless quantum communication networks with a partially entangled state. The probability of transferring the quantum state successfully is statistically analyzed. Our work shows that multi-hop teleportation on distributed wireless quantum networks with partially entangled pairs is feasible. 展开更多
关键词 distributed wireless quantum communication networks partially entangled pairs routing multi-hop teleportation
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Distributed wireless quantum communication networks 认领 引用 被引量：11
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作者 余旭涛 徐进 张在琛 《Chinese Physics B》 SCIE EI CAS CSCD 2013年第9期271-277,共7页
The distributed wireless quantum communication network （DWQCN） ha~ a distributed network topology and trans- mits information by quantum states. In this paper, we present the concept of the DWQCN and propose a syste... The distributed wireless quantum communication network （DWQCN） ha~ a distributed network topology and trans- mits information by quantum states. In this paper, we present the concept of the DWQCN and propose a system scheme to transfer quantum states in the DWQCN. The system scheme for transmitting information between any two nodes in the DWQCN includes a routing protocol and a scheme for transferring quantum states. The routing protocol is on-demand and the routing metric is selected based on the number of entangled particle pairs. After setting up a route, quantum tele- portation and entanglement swapping are used for transferring quantum states. Entanglement swapping is achieved along with the process of routing set up and the acknowledgment packet transmission. The measurement results of each entan- glement swapping are piggybacked with route reply packets or acknowledgment packets. After entanglement swapping, a direct quantum link between source and destination is set up and quantum states are transferred by quantum teleportation. Adopting this scheme, the measurement results of entanglement swapping do not need to be transmitted specially, which decreases the wireless transmission cost and transmission delay. 展开更多
关键词 distributed wireless networks quantum communication networks quantum teleportation routingprotocol
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PLC-Oriented Access Point Location Planning Algorithm in Smart-Grid Communication Networks 认领 引用 被引量：3
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作者 Ningzhe Xing Sidong Zhang +1 位作者 Yue Shi Shaoyong Guo 《China Communications》 SCIE CSCD 2016年第9期91-102,共12页
In this study, we investigate the optimal location of access points （APs） to connect end nodes with a service provider through power-line communication in smartgrid communication networks. APs are the gateways of po... In this study, we investigate the optimal location of access points （APs） to connect end nodes with a service provider through power-line communication in smartgrid communication networks. APs are the gateways of power-distribution communication networks, connecting users to control centers. Hence, they are vital for the reliable, safe, and economical operation of a power system. This paper proposes a planning method for AP allocation that takes into consideration economics, reliability, network delay, and （n-l） resilience. First, an optimization model for the AP location is established, which minimizes the cost of installing APs, while satisfying the reliability, network delay, and （n-1） resilience constraints. Then, an improved genetic algorithm is proposed to solve the optimization problem. The simulation results indicate that the proposed planning method can deal with diverse network conditions satisfactorily. Furthermore, it can be applied effectively with high flexibility and scalability. 展开更多
关键词 smart-grid communication network optimal location access point network delay genetic algorithm
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Reliability Evaluation of All-User Terminals in LEO Satellite Communication Network Based on Modular Reduction 认领 引用 被引量：3
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作者 Yangyang Du Sifeng Liu +1 位作者 Zhigeng Fang Su Gao 《China Communications》 SCIE CSCD 2022年第2期235-246,共12页
LEO satellite communication network has a large number of satellites distributed in low orbits,which leads to multiple coverage of many areas on the ground.It is hard work to describe and evaluate the reliability of L... LEO satellite communication network has a large number of satellites distributed in low orbits,which leads to multiple coverage of many areas on the ground.It is hard work to describe and evaluate the reliability of LEO satellite communication network.To solve this problem,the reliability of all-user terminals in LEO satellite communication network is defined,and the corresponding reliability evaluation method is proposed in the paper.Due to the large scale of the interstellar network,a modular reduction algorithm using the modular network instead of the original network for state decomposition is proposed in this paper.Case study shows that the calculation time of the proposed method is equivalent to 6.28%of the original state space decomposition algorithm.On this basis,the reliability of LEO satellite communication network is further analyzed.It is found that the reliability of LEO satellite network was more sensitive to the reliability of Inter-Satellite link and the satisfaction of global coverage in the early stage,and it is more sensitive to the reliability of the satellite in the later stage.The satellite-ground link has a relatively constant impact on of LEO satellite network. 展开更多
关键词 reliability evaluation LEO satellite communication network modular approach full probability formula all-user terminals
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