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7th Indian Control Conference (ICC)

作者： Patil, Amol Shah, Gautam Univ Mumbai St Francis Inst Technol Elect & Telecommun Engn Mumbai 400 Maharashtra India

ISBN: (纸本)9781665409780

This paper explains mathematical framework of coordination phenomenon happening in nature and social dynamics. Distributed control law is designed for multi-agent dynamical systems using Perron-Frobenius theory. algorithm convergence is analyzed for balanced and unbalanced communication graph. The consensus value and the topological condition under which the algorithm converges is also derived and explained. Simulation results shows the effective implementation of proposed algorithm

关键词： Multi-agent system (MAS) consensus algorithm Communication graph Algebraic graph theory

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Crux-A New Fast, Flexible and Decentralized consensus algorithm with High Fault Tolerance Rate 1

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1st International Conference on Smart Blockchain (SmartBlock)

作者： Li, Pengfei Peng, Jingtian Yang, Long Zheng, Qian Pan, Gang LD Res Shanghai Peoples R China Zhejiang Univ Hangzhou Peoples R China Nanyang Technol Univ Singapore Singapore

ISBN: (数字)9783030057640

ISBN: (纸本)9783030057640;9783030057633

This paper presents Crux, a new permissionless blockchain consensus algorithm that achieves higher fault tolerance rate with more flexibility than existing blockchains such as Bitcoin, Ethereum and EOS. Crux utilize a DPoS-XPaxos pipelined algorithm to achieve effective and efficient consensus. Those who hold tokens in Crux elect 2f + 1 block producers called validators through a continuous approval voting system. The elected validators are scheduled in an order and produce blocks in turns agreed by all of the validators. XPaxos, guarantees f/2f+1 fault tolerance rate, is added to traditional DPoS to confirm blocks. Once f + 1 validators have signed a block, it is deemed irreversible. Analysis shows Crux provides higher securities, better flexibility, higher TPS (transaction per second) with little cost of centralization compared with existing blockchain consensus algorithms.

关键词： Blockchain consensus algorithm DPoS XPaxos Fault tolerance

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ConSenseIoT: A consensus algorithm for Secure and Scalable Blockchain in the IoT context 22

ConSenseIoT: A Consensus Algorithm for Secure and Scalable B...

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17th International Conference on Availability, Reliability and Security (ARES)

作者： Niavis, Harris Loupos, Konstantinos Inlecom Innovat Athens Greece

ISBN: (纸本)9781450396707

Data protection and privacy is a major concern in the Internet of Things (IoT) ecosystem, and the excessive use of IoT devices may risk the security of the network. Blockchain solutions are used to enhance the trustworthiness and eliminate the need for trusted third parties by providing mechanisms to reach consensus in a network of trustless participants. The consensus algorithms employed by blockchain architectures ensure the integrity of the data stored in the blockchain, the resiliency of the network and manage the security of devices. However, current solutions are compute intensive affecting the performance of the network and consuming much energy. In this work, we introduce a consensus algorithm for offering secure distributed consensus among IoT devices without affecting the performance of the network. The algorithm is inspired by existing solutions, employs decentralised identities, verifiable credentials and a decentralised trust management mechanism to guarantee security, privacy and trustworthiness of transactions. Finally, our algorithm combines technologies for operating in a distributed manner which favors the scalability and allow the effective integration in large scale networks.

关键词： Blockchain IoT consensus algorithm trust

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An Advanced PBFT-based consensus algorithm for a Bidding Consortium Blockchain 21

An Advanced PBFT-based Consensus Algorithm for a Bidding Con...

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3rd International Conference on Blockchain Technology (ICBCT)

作者： Du, Liang Tao, Yuan Chen, Tianmei Wang, Qing Lv, Hanyu State Grid Zhejiang Elect Power Co Mat Branch Zhenjiang Jiangsu Peoples R China

ISBN: (纸本)9781450389624

The rapid development of blockchain technology has given rise to many applications like digital currency. Building a consortium blockchain for a bidding system is a promising way to benefit the bidding businesses, by reducing cost and sharing data among tenderers and bidders. Generally, Practical Byzantine Fault Tolerance (PBFT) algorithm is the wide-ly-used consensus algorithm in a consortium blockchain. However, this algorithm meets its bottleneck, when there are a large number of nodes in the consortium blockchain net-work. In order to enhance the scalability of the consensus algorithm, this paper puts for-ward an advanced PBFT-based consensus algorithm, named ANPBFT, by taking ad-vantages of the message aggregation technology and tree topology technology. Specially, the consensus nodes in our proposed algorithm are divided into active nodes and passive nodes. Then, the consensus of block information is equivalent to the confirmation of iden-tity aggregation signature and aggregation promise of information key. The experimental results show that our proposed algorithm has better performance than the original PBFT algorithm. It also shows good scalability and can be used in a large-scale license-chain system.

关键词： Consortium Blockchain consensus algorithm Practical Byzantine Fault Tolerance Message Aggregation Tree Topology

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A consensus algorithm-Based Power Dispatch Method with the Consideration of Power Outage in Smart Home 30

A Consensus Algorithm-Based Power Dispatch Method with the C...

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30th Chinese Control and Decision Conference (CCDC)

作者： Li, Yiying Shan, Qihe Li, Tieshan Dalian Maritime Univ Nav Coll Dalian 116026 Peoples R China

ISBN: (纸本)9781538612446

This paper investigates a consensus algorithm-based power dispatch problem when the power outage happens in the intelligent household. Energy storage devices are added in power grids to support the electricity supply while taking power outages into consideration. According to the need of using electrical appliances caused by the different power outage periods lengths, the establishment of smart home load model and the load shedding judgment are proposed. When the different energy storage devices are used to provide electricity, a consensus algorithm is proposed for the power dispatch. Filially, an example is given to illustrate the effectiveness of proposed algorithm.

关键词： Power outage Energy storage device consensus algorithm Power dispatch Multi-agent system

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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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Improved Raft consensus algorithm in High Real-Time and Highly Adversarial Environment 1

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18th Web Information Systems and Applications Conference (WISA)

作者： Wang, Yuchen Li, Shuang Xu, Lei Xu, Lizhen Southeast Univ Sch Comp Sci & Engn Nanjing 211189 Peoples R China

ISBN: (数字)9783030875718

ISBN: (纸本)9783030875718;9783030875701

High real-time and highly adversarial environment put forward higher requirements for the performance of blockchain consensus algorithm. To improve Raft's consensus efficiency and safety, we propose an improved Raft algorithm called "hhRaft" to optimize Raft consensus process by introducing a new role of monitor. In the leader election phase, monitor nodes supervise the candidate nodes by identifying the malicious node's forged Requestvote message. In the log replication phase, monitor nodes supervise the leader node by comparing the computing results of transactions. Through the performance test on theConsortium Blockchain - Hyperledger Fabric, it is proved that hhRaft is superior to the original Raft algorithm in terms of transaction throughput, consensus latency, and antiByzantine Fault capabilities, making it suitable for use in high real-time and highly adversarial environment.

关键词： Raft Blockchain consensus algorithm Byzantine fault tolerance Highly adversarial environment

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Enhancing Banking Transaction Security with a Hybrid Access Control consensus algorithm Through Blockchain-Enabled Checkpoint Model

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SN Computer Science 2024年第6期5卷 1-17页

作者： Chorey, Priyanka A. Sahu, Neeraj Computer Science and Engineering Department G. H. Raisoni University Amravati

Nowadays, online secure payment systems are being used much more frequently. Advancement in online secure payment system is also enabled multiple threats that affected the privacy and security of the individuals especially, in the banking sector. This study aims to strengthen online secure payment systems in the banking sector by combining a blockchain-based checkpoint model with Hybrid Access Control Enable consensus algorithm (HACECA). The research tries to address the increasing threats to privacy and security in digital transactions and investigates how blockchain technology can strengthen these systems. The research utilizes a blockchain-enabled checkpoint model integrating with a consensus algorithm to enhanced security and transaction monitoring. Smart contracts help in the blockchain to make transactions faster. Hybrid access control ensures genuine user access. Comparative analysis against Triple Data Encryption Standard encryption algorithm (Triple DES), Hash based secret key encryption algorithm (HBSK), Certificate less signature scheme (CLS) algorithm, Checkpoint Enabled Scalable Blockchain Architecture (CESBA) validates the effectiveness of the proposed HACECA. The study introduces an approach, showing significant improvement in transaction security and efficiency. The HACECA presents a solution to relieve risks in online transactions. Performance indicator includes transaction recovery time (10.88 ms), memory usage (108.17 kb), and responsiveness (33.55 ms) demonstrates the significant improvements. The research highlights its significant advancements over existing solutions, focus attention on its potential for wide adoption in secure payment systems. © The Author(s), under exclusive licence to Springer Nature Singapore Pte Ltd. 2024.

关键词： Blockchain Checkpoint consensus algorithm Online secure payment Smart contract Transaction security

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Finite-time consensus algorithm for Power Systems using Cucker-Smale Model

Finite-time Consensus Algorithm for Power Systems using Cuck...

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IEEE IAS Global Conference on Renewable Energy and Hydrogen Technologies (GlobConHT)

作者： Gulzar, Muhammad Majid Munaward, Muhammad Alismail, Fahad Khalid, Muhammad King Fahd Univ Petr Minerals Control & Instrumentat Engn Dept Dhahran 31261 Saudi Arabia King Fahd Univ Petr Minerals Ctr Renewable Energy & Power Syst Dhahran 31261 Saudi Arabia King Fahd Univ Petr Minerals Dept Elect Engn Dhahran 31261 Saudi Arabia King Fahd Univ Petr Minerals SDAIA KFUPM Joint Res Ctr Artificial Intelligence Dhahran 31261 Saudi Arabia Univ Cent Punjab Dept Elect Engn Lahore Pakistan

ISBN: (纸本)9798350332117

consensus is one of the most actively studied topics within the realm of multi-agent systems. It generally aims to drive flocks to achieve a common group objective. In this study, a Cucker-Smale model for consensus algorithm has been implemented to resolve the issue of flocking for power systems. By using this model, consensus can be achieved by randomly chosing the initial positions and velocities of the birds with a minimum number of iterations. Moreover, at the end the simulation results for 7 and 25 birds have been presented to confirm the convergence of the agent's average velocities and directions.

关键词： Multi-agent systems consensus algorithm Cucker-Smale model Flocking Iterations

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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...

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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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