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检索条件"主题词=Consensus Algorithm"

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Blockchain consensus algorithm Using Cellular Networks Location Services

Blockchain Consensus Algorithm Using Cellular Networks Locat...

引用

International Conference on Engineering and Emerging Technologies (ICEET)

作者： Andrei-Vlad Constantin Automation Delivery Realworld Systems Eastern Europe Bucharest Romania

ISBN: (数字)9798331532895

ISBN: (纸本)9798331532901

This paper proposes an innovative block validation algorithm for blockchain solutions using cellular network location services. The concept involves using the range of telecommunications signal antennas combined with end-user device position, provided by location services, to generate and solve the consensus task, which involves a race-like challenge with the winner being rewarded, as an additional incentive.

关键词： Cellular networks consensus algorithm consensus protocol Telecommunications Antennas

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A One-Time Encryption consensus algorithm Based on (t, n) Threshold Secret Sharing

A One-Time Encryption Consensus Algorithm Based on (t, n) Th...

引用

Advances in Modern Age Technologies for Health and Engineering Science (AMATHE), International Conference on

作者： Fanchang Amit Yadav Asif Khan Department of Software Engineering Chengdu Neusoft University Chengdu China College of Engineering IT and Environment Charles Darwin University NT Australia Department of Computer Application Integral University Lucknow India

ISBN: (数字)9798350371567

ISBN: (纸本)9798350371574

A one-time encryption consensus algorithm based on (t, n) threshold secret sharing is proposed to address the performance and security issues of consensus mechanisms in blockchain applications. The theoretical basis of this algorithm is the chaos algorithm, finite state automata, secure multi-party computation, and lagrange interpolating formula in cryptography. After analyzing the security of the threshold secret sharing scheme, it can resist various attacks and achieve a one-time encryption security level, It also has the characteristics of key dynamism and nodes management flexibility, ensuring the strong security of the proposed consensus algorithm.

关键词： Knowledge engineering Chaos Interpolation Automata consensus algorithm Resists Multi-party computation

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A Reputation-Aware Randomization consensus algorithm for Performance Optimization in Blockchain Systems

A Reputation-Aware Randomization Consensus Algorithm for Per...

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International Conference on Computer Supported Cooperative Work in Design

作者： Jingyu Zhang Yongtao Sun Zhennan Zhang Weifeng Ren Lailong Luo School of Computer and Communication Engineering Changsha University of Science and Technology Changsha China Science and Technology on Information Systems Engineering Laboratory School of Systems Engineering National University of Defense Technology Changsha China

ISBN: (数字)9798350349184

ISBN: (纸本)9798350349191

Blockchain technology, due to its decentralized, traceable, and tamper-resistant characteristics, has been applied in a wide range of collaborative computing scenarios, including smart grid, industrial production, and smart cities. consensus algorithm, as the key blockchain technology, plays a decisive role in terms of performance, security, and scalability, ensuring that system nodes reach consensus on transaction data. However, with the increase of user nodes and the diversity of application scenarios, existing consensus algorithms face some performance and security challenges. To overcome these challenges, this article proposes a novel blockchain consensus mechanism, namely the Reputation-Aware Randomization consensus algorithm (RRCA). The proposed mechanism first constructs a dynamic reputation evaluation model to divide nodes into ordinary ones and candidate ones. Secondly, a selection model is constructed for candidate nodes to select consensus nodes, which run the consensus algorithm. Finally, a random selection mechanism for the leader node of the proposed consensus algorithm is constructed to ensure the unpredictability and reduce the probability of the leader node being subjected to malicious attacks. Theoretical analysis and experimental results indicate that the RRCA can significantly reduce consensus latency and increase the unpredictability of the leader node, which improves the performance and security of blockchain systems.

关键词： Smart cities Federated learning Scalability Evaluation models consensus algorithm Production Blockchains

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DT-PBFT: A Double-Layer Group consensus algorithm of Credibility for IoT Blockchain

DT-PBFT: A Double-Layer Group Consensus Algorithm of Credibi...

引用

Big Data, Information and Computer Network (BDICN), International Conference on

作者： Yaxin Chen Yongpu Jia State Key Laboratory of Networking and Switching Technology Beijing University of Posts and Telecommunications Beijing China

Blockchain technology is becoming more and more popular, but performance problems have always troubled it, especially the scale of distributed networks is limited. Like Practical Byzantine consensus algorithm (PBFT), the main bottlenecks are concentrated in the scope of consensus too small, and the communication is too high. In order to implement PBFT in large-scale systems such as large-scale IoT ecosystems and blockchains, this paper proposes a reputation-based two-layer improved PBFT consensus computing model DT-PBFT. In order to better combine with the large -scale Internet of Things ecosystem, we give each node regional location, communication capacity, computing power and other related attributes to each involvement, so that Client nodes can input node attributes as parameters into the reputation calculation algorithm, to select the master node of each layer in the double-layer consensus model. Determining the master node through reputation improves the credibility of the consensus algorithm. At the same time, the DTPBFT cancels the Pre-Prepare stage, reducing communication complexity. Finally, this paper transforms the existing PBFT algorithm on the Fabric platform to implement the DT-PBFT consensus algorithm and compares its performance with traditional PBFT, proving that DT-PBFT has the best balance and excellent comprehensive performance in large-scale IoT application scenarios.

关键词： Scalability Computational modeling Ecosystems consensus algorithm Transforms Stability analysis Blockchains

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Exponential Convergence of the consensus algorithm over a Shared Broadcast Channel

Exponential Convergence of the Consensus Algorithm over a Sh...

引用

IEEE Conference on Decision and Control

作者： Adel Bechihi Elena Panteley Arnaud Bouttier Laboratoire des Signaux et Systèmes CentraleSupelec Gif-sur-Yvette France Mitsubishi Electric R&D Centre Europe France Laboratoire des Signaux et Systèmes Gif-sur-Yvette France

ISBN: (纸本)9781665436601

This article presents a particular class of consensus algorithms for multi-agent systems of continuous-time single integrators communicating over a shared broadcast channel. To deal with the problem of interference and packet collision, we consider a time-division multiple access (TDMA) protocol represented by a switching topology where only one agent can transmit at a time. A Lyapunov function is proposed to prove the exponential convergence of this class of consensus algorithms under mild assumptions. We also provide an explicit bound for the consensus errors that depends on the communication protocol parameters.

关键词： Time division multiple access Protocols Conferences consensus algorithm Switches Interference Topology

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SOC Equalization Control Strategy of DC Microgrid Energy Storage Unit Based on Improved consensus algorithm

SOC Equalization Control Strategy of DC Microgrid Energy Sto...

引用

International Conference on Power Electronics and Motion Control (IPEMC)

作者： Na Zhi Yuhang Yang Shuai Chigan Xi'an University of Technology Xi'an China

ISBN: (数字)9798350351330

ISBN: (纸本)9798350351347

Distributed energy storage units (DESUs) are usually used in DC microgrids to maintain the internal power balance of the microgrid, but the unbalanced state of charge (SOC) of the energy storage unit will shorten the life of DESUs. In this paper, an adaptive droop control strategy with secondary control for DC microgrids is presented. This control approach incorporates the SOC equalization technique into the droop coefficient of the energy storage device to achieve the power balance while achieving the quick balance of SOC of the DESUs. An improved proportional integral average consistency algorithm is provided for calculating the average SOC and managing the voltage to solve the problem of steady-state inaccuracy caused by communication delay in the previous consensus algorithm, while also improving the convergence speed and power distribution accuracy of the DC microgrid. Simulation results verify the effectiveness of the control strategy.

关键词： Tracking Simulation Heuristic algorithms Microgrids consensus algorithm Stability analysis Robustness

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Beyond Seismographs: A consensus algorithm for Earthquake Early Warning at the Edge

Beyond Seismographs: A Consensus Algorithm for Earthquake Ea...

引用

IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)

作者： Leonardo D’Errico Claudia Rinaldi Carlo Centofanti Fabio Franchi Fabio Graziosi DISIM - Department of Information Engineering Computer Science and Mathematics CNIT - Interuniversity Consortium for Telecommunications Università degli Studi dell’Aquila L’Aquila Italy

ISBN: (数字)9798350362244

ISBN: (纸本)9798350362251

With the advent of advanced communication technologies like 5G and the emergence of the Internet of Everything, there is a growing potential to leverage public communication networks for mission-critical applications. Traditionally, these applications have depended on private, narrowband networks such as TETRA and P25. The latest communication protocols and architectures promise specific levels of latency and reliability even during the negotiation phase. Concurrently, the increasing deployment of sensors for Structural Health Monitoring (SHM) offers access to vast data volumes at low costs and near real-time capabilities when required. This paper highlights the significant benefits of integrating these two paradigms in the context of Earthquake Early Warning (EEW) systems. Utilizing existing earthquake propagation models and recorded seismic data, we have developed a new simulator tailored to mimic a densely packed sensor network environment. We introduce a consensus algorithm that processes the initial milliseconds of data collected by sensors nearest to the earthquake’s hypocenter. An alert is then promptly issued. Our results indicate substantial improvements in reducing the time to relay warnings, thereby significantly diminishing the extent of the blind zone, where warnings arrive too late, in EEW systems.

关键词： Costs 5G mobile communication Smart cities Earthquakes consensus algorithm Sensors Resource management Relays Monitoring Testing

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A Unified Distributed Secondary Controller using a Dynamic consensus algorithm in DC Microgrids

A Unified Distributed Secondary Controller using a Dynamic C...

引用

IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia)

作者： Dawei Liao Fei Gao Xin Liu Key Laboratory of Control of Power Transmission and Conversion Ministry of Education Shanghai China Department of Electrical Engineering Shanghai Jiao Tong University Shanghai China

ISBN: (纸本)9798350399677

In a DC microgrid, one of the most important issues is appropriate current sharing among converters which is commonly addressed by droop control in a decentralized fashion. However, there is a tradeoff between accurate current sharing and bus voltage regulation. This paper proposes a unified cooperative secondary control scheme which can achieve the two objectives using one integrator and one communication variable, which is communicated using a discrete-time dynamic consensus algorithm (DCA). The influence of control and electrical parameters on the system stability are investigated by eigenvalue contours after a linearized state-space model is built. Simulations on MATLAB/Simulink verify the performance of the proposed method under load changes and communication link failure.

关键词： Heuristic algorithms Asia consensus algorithm Microgrids Power system stability Stability analysis State-space methods

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Design and Implementation of a consensus algorithm to build Zero Trust Model

Design and Implementation of a Consensus Algorithm to build ...

引用

IEEE India Conference (INDICON)

作者： Annapurna P Patil Gaurav Karkal Jugal Wadhwa Meer Sawood K Dhanush Reddy Ramaiah Institute of technology Bangalore India

ISBN: (数字)9781728169163

ISBN: (纸本)9781728169170

Zero Trust Model ensures each node is responsible for the approval of the transaction before it gets committed. The data owners can track their data while it's shared amongst the various data custodians ensuring data security. The consensus algorithm enables the users to trust the network as malicious nodes fail to get approval from all nodes, thereby causing the transaction to be aborted. The use case chosen to demonstrate the proposed consensus algorithm is the college placement system. The algorithm has been extended to implement a diversified, decentralized, automated placement system, wherein the data owner i.e. the student, maintains an immutable certificate vault and the student's data has been validated by a verifier network i.e. the academic department and placement department. The data transfer from student to companies is recorded as transactions in the distributed ledger or blockchain allowing the data to be tracked by the student.

关键词： Distributed ledger Data security Conferences Distributed databases consensus algorithm Companies Data transfer

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Distributed Control Method for Multi-User Side Energy Storage SOC Based on consensus algorithm

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

引用

IEEE International Conference on Power and Power and Renewable Energy (ICPRE)

作者： Haijing Zhang Xin Wang Yuan Lu Yuan Jiang Yankun Feng Tianan Guo State Grid Shandong Electric Power Supply Company Marketing Service Center (Metrology Center) Shandong China State Grid Zibo Power Supply Company Shandong China Hebei Xiong'an Xuji Electric Technology Comprehensive Energy Technology Co. Ltd. Henan China

ISBN: (数字)9798350377460

ISBN: (纸本)9798350377477

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： Simulation consensus algorithm Switches consensus control Virtual power plants Stability analysis Robustness Regulation Power generation Energy storage

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