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检索条件"主题词=Consensus Algorithm"

共 2600 条记录，以下是161-170 订阅

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An Algebraic Approach to Designing consensus algorithm of Networked High Dimensional Agents 36

An Algebraic Approach to Designing Consensus Algorithm of Ne...

引用

第36届中国控制会议

作者： Chi Huang Guisheng Zhai Gesheng Xu College of Mathematics Taiyuan University of Technology Department of Mathematical Sciences Shibaura Institute of Technology

ISBN: (纸本)9781538629185

In this paper,we deal with a consensus control problem for a group of high dimensional agents which are networked by *** that the control input of each agent is constructed based on the weighted difference between its states and those of its neighbor agents,we aim to propose an algorithm on computing the weighting coefficients in the control *** problem is reduced to designing Hurwitz polynomials with complex *** on the case of three dimensional systems,we show that by using Hurwitz polynomials with complex coefficients,we obtain a necessary and sufficient condition for the consensus *** condition is a natural extension to second order consensus,and is reasonable and practical due to its comparatively less computation *** numerical examples show effectiveness of the proposed condition and the consensus algorithm.

关键词： Networked high dimensional agents consensus algorithm graph Laplacian Hurwitz polynomials with complex coefficients

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DT-DPoS: A Delegated Proof of Stake consensus algorithm with Dynamic Trust 9

DT-DPoS: A Delegated Proof of Stake Consensus Algorithm with...

引用

International Conference on Identification, Information and Knowledge in the Internet of Things (IIKI)

作者： Sun, Yuanyuan Yan, Biwei Yao, Yan Yu, Jiguo Qufu Normal Univ Sch Comp Sci Rizhao 276826 Shandong Peoples R China Qufu Normal Univ Sch Math Sci Qufu 273165 Shandong Peoples R China Qilu Univ Technol Sch Comp Sci & Technol Shandong Acad Sci Jinan 250353 Shandong Peoples R China Natl Supercomp Ctr Jinan Shandong Comp Sci Ctr Jinan 250014 Shandong Peoples R China Shandong Lab Comp Networks Jinan 250014 Shandong Peoples R China

Blockchain is a distributed accounting system. One of its key issues is how to ensure agreement between distrustful nodes. As an important component of blockchain, consensus algorithm can solve the consistency problem, and its efficiency directly determines the performance of blockchain. Compared with Proof of Work (PoW) and Proof of Stake (PoS), the existing Delegated Proof of Stake (DPoS) consensus algorithm improves the efficiency of consensus, but it will face some threats, such as DoS attack and collusion attack, because the mechanism that each witness node takes turns to generate blocks. Therefore, we propose a delegated proof of stake consensus algorithm with dynamic trust, that is, DT-DPoS. We improve an EigenTrust-based trust model and construct an evaluation criterion based on the combination of stake voting and trust value, which improves the reliability of witness nodes and reduces the risk of collusion attacks. At the same time, we use a ring signature scheme, which ensures the privacy and anonymity of witness nodes. Finally, the theoretical analysis shows the effectiveness and scalability of our algorithm. (C) 2021 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://***/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the International Conference on Identification, Information and Knowledge in the internet of Things, 2020.

关键词： Blockchain consensus algorithm DT-DPoS Trust Model Evaluation Criteria Ring Signature

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CBDC consensus algorithm design choice 6

CBDC consensus algorithm design choice

引用

6th International Conference on Blockchain Technology and Applications (ICBTA)

作者： Tsareva, Anastasia Madhwal, Yash Yanovich, Yury HSE Univ Grad Sch Business Moscow Russia Skolkovo Inst Sci & Technol Moscow Russia HSE Univ Moscow Russia

ISBN: (纸本)9798400708671

In this paper, we analyze the decentralization features of Central Bank Digital Currencies (CBDCs) and evaluate the limitations of Distributed Ledger Technology (DLT) benefits in this context. Our research explores the essential characteristics of consensus algorithms, including security, finality, and efficiency, for CBDCs and considers the trade-off between transaction throughput and decentralization. After examining various options, we conclude that Proof of Work (PoW) and Proof of Stake (PoS) are unsuitable for CBDCs. However, Proof of Authority (PoA), Delegated Proof of Stake (DPoS), and Notary Services are promising alternatives. Our findings reveal that while CBDCs possess some decentralization components in their architecture, they still maintain political and logical centralization due to regulation by the Central Bank. Consequently, CBDCs can only partially leverage all the benefits of DLT, such as the ability to withstand challenges, which still depend on the Central Bank as the sole point of failure. This paper aims to equip policymakers with valuable insights to make informed decisions regarding the design of CBDC consensus algorithms.

关键词： CBDC DLT consensus algorithm design choice

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Incremental Cost consensus algorithm in a Smart Grid Environment

Incremental Cost Consensus Algorithm in a Smart Grid Environ...

引用

General Meeting of the IEEE-Power-and-Energy-Society (PES)

作者： Zhang, Ziang Chow, Mo-Yuen N Carolina State Univ Dept Elect & Comp Engn Raleigh NC 27606 USA

ISBN: (纸本)9781457710018

In a next generation power system, effective distributed control algorithms could be embedded in distributed controllers to properly allocate electrical power among connected buses autonomously. In this paper, we present a novel approach to solve the economic dispatch problem. By selecting the incremental cost of each generation unit as the consensus variable, the algorithm is able to solve the conventional centralized control problem in a distributed manner. The row-stochastic matrices have been used to indicate the different topologies of distribution systems and their configuration properties, such as convergence speeds. The simulation results of several case studies are provided to verify the algorithm.

关键词： Distributed control consensus algorithm quantized consensus economic dispatch multi-agent system smart grid

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Coordination Power Control Of DC Water Pump System using Dual-loop Control and consensus algorithm

Coordination Power Control Of DC Water Pump System using Dua...

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International Conference on Electrical, Electronics and Information Engineering (ICEEIE)

作者： Kusumawardana, Arya Habibi, Muhammad Afnan Wibawanto, Slamet Wicaksono, Hendro Prasetya, Yoga Nurrahman, Rizqi Univ Negeri Malang Dept Elect Engn Malang Indonesia Jacobs Univ Bremen Germany

ISBN: (纸本)9781728141602

Power control in household devices are needed to avoid trip conditions on electric current. One of the power controls is the control of the water pump. Often, water pumps installed in one house are more than one. To overcome these problems, it is necessary to design an algorithm to coordinate each of the water pumps. In this study, the consensus algorithm is designed to coordinate the water pumps used. The algorithm is used to generate reference signals for each agent (water pump). Integral Sliding Mode Current Control (ISMCC) and PI Controller is used as local controller. ISMCC is inner-loop current controller and PI is outer-loop power controller. The simulation result shows that power response of each agent is able to follow reference signal from consensus algorithm even though any unknown pump parameters. However, overshoot of the total power is more than 5%.

关键词： consensus algorithm Coordination DC Water Pump ISMCC PI

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A Weak consensus algorithm and Its Application to High-Performance Blockchain 40

A Weak Consensus Algorithm and Its Application to High-Perfo...

引用

40th IEEE Conference on Computer Communications (IEEE INFOCOM)

作者： Wang, Qin Li, Rujia Southern Univ Sci & Technol Shenzhen 518055 Peoples R China Swinburne Univ Technol Melbourne Vic 3122 Australia Univ Birmingham Edgbaston B15 2TT England HPB Fdn DUO Tower Singapore 189352 Singapore

ISBN: (纸本)9780738112817

A large number of consensus algorithms have been proposed. However, the requirement of strict consistency limits their wide adoption, especially in high-performance required systems. In this paper, we propose a weak consensus algorithm that only maintains the consistency of relative positions between the messages. We apply this consensus algorithm to construct a high-performance blockchain system, called Sphinx. We implement the system with 32k+ lines of code including all components like consensus/P2P/ledger/etc. The evaluations show that Sphinx can reach a peak throughput of 43k TPS (with 8 full nodes), which is significantly faster than current blockchain systems such as Ethereum given the same experimental environment. To the best of our knowledge, we present the first weak consensus algorithm with a fully implemented blockchain system.

关键词： consensus algorithm Blockchain Performance

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Distributed Control Method for Multi-user Side Energy Storage SOC Based On consensus algorithm 9

Distributed Control Method for Multi-user Side Energy Storag...

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9th International Conference on Power and Renewable Energy

作者： Zhang, Haijing Wang, Xin Lu, Yuan Jiang, Yuan Feng, Yankun Guo, Tianan State Grid Shandong Elect Power Supply Co Mkt Serv Ctr Metrol Ctr Jinan Shandong Peoples R China State Grid Zibo Power Supply Co Zibo Shandong Peoples R China Comprehens Energy Technol Co Ltd Hebei Xiongan Xuji Elect Technol Henan Peoples R China

ISBN: (纸本)9798350377477;9798350377460

In recent years, user-side energy storage has developed rapidly and is widely used to save electricity costs for industrial and commercial users. Compared with source-side and grid-side centralised energy storage, user-side energy storage is more decentralised, with smaller single capacity and larger quantity, which is not easy to carry out centralised regulation and control. In contrast, the distributed control method has the characteristics of strong control robustness and stability, which is more suiTABLE as the SOC coordinated control of a large number of distributed energy storage. In this paper, a distributed energy storage SOC coordinated control algorithm based on improved consensus algorithm is designed, which can achieve SOC consensus control of multiple user-side energy storage, and compared with the centralised control scheme, it has the features of small computation amount of the central controller and strong robustness of the controller. Simulation results show that the distributed energy storage SOC coordinated control algorithm based on the improved consensus algorithm designed in this paper can effectively achieve the consistent control of multiple user-side energy storage in the station area.

关键词： User-side energy storage consensus algorithm SOC coordination SOC estimation Distributed control scheme

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A New consensus algorithm for Multi-Agent Systems via Dynamic Output Feedback Control

A New Consensus Algorithm for Multi-Agent Systems via Dynami...

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IEEE International Conference on Control Applications/International Symposium on Intelligent Control

作者： Zhai, Guisheng Okuno, Shohei Imae, Joe Kobayashi, Tomoaki Osaka Prefecture Univ Dept Mech Engn Osaka 5998531 Japan

ISBN: (纸本)9781424446018

In this paper, we study a consensus problem for multi-agent systems via dynamic output feedback control. The entire system is decentralized in the sense that each agent can only obtain output information from its neighbor agents. In contrast to the existing graph Laplacian based algorithm, we propose to reduce the consensus problem on hand to solving a strict matrix inequality using appropriate coordinate transformation, and also propose a homotopy-based method for solving the matrix inequality. It turns out that our algorithm includes the existing graph Laplacian based algorithm as a special case, and can deal with various additional control requirements such as convergence rate specification and actuator limitations.

关键词： Multi-agent systems consensus algorithm dynamic output feedback graph Laplacian matrix inequality homotopy method LMI

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MSig-BFT: A Witness-Based consensus algorithm for Private Blockchains 24

MSig-BFT: A Witness-Based Consensus Algorithm for Private Bl...

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24th IEEE International Conference on Parallel and Distributed Systems (ICPADS)

作者： Chen, Chun-Wei Su, Jian-Wei Kuo, Tung-Wei Chen, Kung Natl Chengchi Univ Dept Comp Sci Taipei Taiwan

ISBN: (纸本)9781538673089

In this paper, we focus on the design of consensus algorithms for permission-based blockchains, i.e., private blockchains. In most consensus algorithms, blocks are proposed by a specific role called "leader". hi this paper, we introduce a new role called "witness" to supervise the leader. The presence of the witness facilitates the design of the consensus algorithm. We propose a witness-based consensus algorithm that guarantees safety and liveness. We implemented this consensus algorithm on Go Ethereum. The experimental result shows that in a blockchain where four nodes participate in the consensus process, we can achieve a throughput of 1000 transactions per second (TPS). Even if these four nodes are located on different continents, and one of them is faulty, we can still achieve a throughput of 300 TPS. Finally, we find that during the experiment, a significant portion of time (>50%) is spent on activities other than the consensus task. The result suggests that to further increase the throughput of a private blockchain, the consensus task and non-consensus activities should be considered jointly.

关键词： Private blockchain consensus algorithm Byzantine fault tolerance

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Constrained Distributed Estimation Based on consensus algorithm for Mobile Robots Tracking 4

Constrained Distributed Estimation Based on Consensus Algori...

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4th IEEE International Conference on Control System Computing and Engineering (ICCSCE 2014)

作者： Yousefi, Zeinab R. Menhaj, Mohammad B. Amirkabir Univ Technol Dept Elect Engn Tehran Iran

ISBN: (纸本)9781479956869

We are presenting a distributed algorithm for tracking a moving target using mobile robots, each equipped with sensors. In this work, to cope with the constraints on the noise and states of the target, we employ a distributed estimation algorithm which is based on the concept of moving horizon estimation (MHE). A consensus process in this algorithm guarantees all the mobile robots asymptotically converge to a common value for the estimate of the moving target states. Furthermore, the movement decision of the mobile robots is based on the flocking algorithm.

关键词： Distributed moving horizon estimation consensus algorithm flocking mobile robots target tracking

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