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IEEE International Conference on Communications (ICC 2008)

作者： Marechal, Nicolas Pierrot, Jean-Benoit Gorce, Jean-Marie CEA LETI MINATEC Grenoble France INSA Lyon Lyon France

ISBN: (纸本)9781424420742

As synchronization preambles represent a great overhead on wireless data packets, it could be interesting to powerful them. Fine synchronization solves this problem by homogenizing clock drift values on network regions. When coupled with any clock bias consensus method (coarse synchronization), fine synchronization allows the setup of time based medium multiplexing schemes (TDMA, Slotted ALOHA,...). This paper deals with a lightweight method able to perform the computation of local clock drift corrections using simple interaction rules between neighbor nodes. The solution proposed in this work has the main advantage to be robust to measurement noise while having the technologically interesting ability to drive clock drifts towards an average consensus.

关键词： distributed algorithm time synchronization networked systems consensus algorithms information fusion

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Coordination and control for building automation systems

Coordination and control for building automation systems

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13th International Conference on Control, Automation and Systems (ICCAS)

作者： Kim, Byeong-Yeon Ahn, Hyo-Sung GIST Sch Mechatron Kwangju 500712 South Korea

ISBN: (纸本)9788993215052

This paper presents coordination and control for heating energy distribution in building automation systems. The temperature of each room is determined by heating energy coordination and heat flow control. In this paper, the coordination and control is achieved in a distributed manner. consensus schemes using only local information are employed to the heating energy coordination and the heat flow control. Thus, this paper proposes a distributed heating energy coordination scheme and a heat flow control method considering constraints based on distributed consensus algorithms.

关键词： Building automation systems temperature control consensus algorithms

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BLOCKLIB: Blockchain enabled library resource sharing

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JOURNAL OF DISCRETE MATHEMATICAL SCIENCES & CRYPTOGRAPHY 2022年第3期25卷 839-857页

作者： Sharma, Shallu Batth, Ranbir Singh Lovely Profess Univ Sch Comp Applicat Phagwara Punjab India Lovely Profess Univ Sch Comp Sci & Engn Phagwara Punjab India

Being developed from traditional construction to smart resource sharing system, libraries are committed to create a sound content sharing infrastructure beyond the walls. Blockchain supports the certainty of resources ownership and access. This paper presents a blockchain based smart library management system for online sharing of data. The system eradicates the chances of tampering as well as unauthorized accessing the data by introducing a unique and secure accessing mechanism with blockchain technology. The proposed framework is able to provide the secure access to database without any load and access from any location.

关键词： Hyperledger Resource sharing Library system consensus algorithms

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Game-theoretic Designs for Blockchain-based IoT: Taxonomy and Research Directions 4

Game-theoretic Designs for Blockchain-based IoT: Taxonomy an...

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4th IEEE International Conference on Decentralized Applications and Infrastructures (IEEE DAPPS)

作者： Erfan, Fatemeh Bellaiche, Martine Halabi, Talal Polytechn Montreal Montreal PQ Canada Univ Laval Quebec City PQ Canada

ISBN: (数字)9781665491723

ISBN: (纸本)9781665491723

In the last few years, the combination of the Internet of Things (IoT) and blockchain technologies has widely attracted significant research attention from academia and the industry due to the salient characteristics of blockchain and its natural compatibility with the functional requirements of IoT architectures. Despite the advantages of utilizing the blockchain in IoT systems, several issues have been raised regarding the mitigation of security attacks on blockchain-based IoT systems, management of blockchain operations, node communications, energy consumption, efficient consensus algorithm design, data sharing, and edge/fog computing. Many of the solutions proposed in the literature tried to address these issues using game-theoretic models. This paper surveys and investigates state-of-the-art blockchain-based IoT solutions leveraging game theory to address common issues in blockchain design. The developed taxonomy enabled us to highlight existing challenges to the integration of game theory models into the design of blockchain-driven IoT and bring forward some critical research questions.

关键词： Internet of Things blockchain design game theory security consensus algorithms

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Resilient Communication Scheme for Distributed Decision of Interconnecting Networks of Microgrids

Resilient Communication Scheme for Distributed Decision of I...

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IEEE-Power-and-Energy-Society Innovative Smart Grid Technologies Conference (ISGT)

作者： Vu, Thanh Long Mukherjee, Sayak Adetola, Veronica Pacific Northwest Natl Lab Richland WA 99354 USA

ISBN: (纸本)9781665453554

Networking of microgrids can provide the operational flexibility needed for the increasing number of DERs deployed at the distribution level and supporting end-use demand when there is loss of the bulk power system. But, networked microgrids are vulnerable to cyber-physical attacks and faults due to the complex interconnections. As such, it is necessary to design resilient control systems to support the operations of networked microgrids in responses to cyber-physical attacks and faults. This paper introduces a resilient communication scheme for interconnecting multiple microgrids to support critical demand, in which the interconnection decision can be made distributedly by each microgrid controller even in the presence of cyberattacks to some communication links or microgrid controllers. This scheme blends a randomized peer-to-peer communication network for exchanging information among controllers and resilient consensus algorithms for achieving reliable interconnection agreement. The network of 6 microgrids divided from a modified 123-node test distribution feeder is used to demonstrate the effectiveness of the proposed resilient communication scheme.

关键词： Smart grid resiliency networked microgrids consensus algorithms

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Performance and Cost Evaluation of Public Blockchain: An NFT Marketplace Case Study 4

Performance and Cost Evaluation of Public Blockchain: An NFT...

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4th Conference on Blockchain Research & Applications for Innovative Networks and Services (BRAINS)

作者： Rasolroveicy, Mohammadreza Fokaefs, Marios Polytech Montreal Dept Comp & Software Engn Montreal PQ Canada

ISBN: (数字)9781665471589

ISBN: (纸本)9781665471589

Non Fungible tokens (NFTs) are receiving unprecedented attention among digital creators and traders. This technology allows creators to certify their digital assets on blockchain as a decentralized, immutable, and transparent database. They can transfer the ownership of NFTs, which can easily be traced without the risk of manipulation. The trading volume for NFTs has surged to $10 billion in the third quarter of 2021. Although the high complexity of the consensus algorithm in blockchain ensures better security, it imposes higher transaction costs and limited scalability. To alleviate high transaction fees, energy inefficiency, and delays, tens of public blockchain platforms with different consensus protocols are being proposed as alternatives for NFT marketplaces. A crucial design choice for such an NFT marketplace is, in fact, to select the best public blockchain platform. In this work, we evaluate the cost and the performance of three public blockchain platforms, Fantom, Avalanche, and Polygon, in a use case for minting and transferring NFTs. We present machine learning models to predict the transaction cost and the throughput for the three platforms as decision parameters to choose the most appropriate platform. Our experimental results in terms of transaction fees and throughput demonstrate that the Polygon network is more efficient than the other two platforms.

关键词： Blockchain Blockchain Performance NFT consensus algorithms Blockchain scalability Machine Learning cost prediction

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Distributed Coordinated Formation Control of Multiple Spacecraft with and without Velocity Measurements

Distributed Coordinated Formation Control of Multiple Spacec...

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31st Chinese Control Conference

作者： Zhang Baoqun Song Shenmin Zheng Zhong Wei Xiqing Harbin Inst Technol Harbin 150001 Peoples R China

ISBN: (纸本)9789881563811

The coordinated formation control problem for multiple spacecraft regarding formation maneuvers is addressed in this paper. Motivated by recent developments of consensus algorithms, a formation-keeping controller is presented by looking into local information exchange among formation flying spacecraft and by choosing proper states on which consensus is reached. Then, with the use of consensus algorithms combined with behavior-based control, a distributed full-state feedback coordinated formation controller, requiring both position and velocity measurements, is proposed in order to achieve both goals of formation maneuvering and formation keeping during transition. Further, passive filters are employed to design an output feedback coordinated formation controller without velocity measurements. Numerous simulations are provided to demonstrate the effectiveness of the proposed control schemes.

关键词： Spacecraft formation flying Coordinated control consensus algorithms Behavior-based control Output feedback

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Proof of Good Service Based on DAGs-To-Blockchain for IoT Applications 1st

Proof of Good Service Based on DAGs-To-Blockchain for IoT Ap...

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1st International Conference on Emerging Technology Trends in Internet of Things and Computing (TIOTC)

作者： Al-Joboury, Istabraq M. Al-Hemiary, Emad H. Al Nahrain Univ Coll Informat & Commun Engn Baghdad Iraq

ISBN: (纸本)9783030972554;9783030972547

Distributed ledgers based on decentralization are promising technologies to reliably and securely distribute data. Nodes in Blockchain can create a block that contains several transactions through consensus algorithms and is linked to the previous block using hash computation. It is expected to be integrated with smart technologies, such as the Internet of Things (IoT) to store and process data from sensors. However, IoT devices are resource-constrained embedded micro-controllers, which cannot handle the current Blockchain ledgers of high huge storage need, as well as the extensive tasks of consensus algorithms (e.g., Proof of Work). To remove centralization and to improve the linear structure, this paper proposes a new low latency distributed algorithm titled Proof of Good Service based on Directed Acyclic Graphs (DAGs)-to-Blockchain structure (PoGSDB). It is organized in 5 horizontal layers in permissioned mode with different features, namely: Common, Committee, Fog, Queen, and Cloud. A limited number of common, committee, and fog nodes are grouped. Each group has its DAG (named Cobweb ledger) based on uniform distribution. Common nodes send authenticated data with the public key to Committee. The latter receives and broadcasts it to its neighbors, then each node chooses a random number as a counter and autodecrement it. The winner node is the fastest committee node that reaches zero. The committee nodes rate the winner based on its speed and availability (rate scores from 1 to 5). Every stipulated time, the Cobweb ledger is selected from each group by fog node to send it with authentication to Cloud through the Internet. The cloud leader adds each Cobweb ledger to blocks after check the authentication and authorization. The rest nodes will rate the leader as in committee. Finally, the Queen node is used for monitoring the network and behavior of nodes. The proposed algorithm is emulated and evaluated in a healthcare scenario to mitigate overhead costs, verificati

关键词： Internet of Things Blockchain Direct acyclic graphs Distributed ledgers consensus algorithms

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Blockchain Based UPI Technology for Secured Peer-to-Peer Cryptocurrency Transactions

Blockchain Based UPI Technology for Secured Peer-to-Peer Cry...

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2023 IEEE Global Conference on Information Technologies and Communications, GCITC 2023

作者： Tressa, Neethu Priya, C. Dr. M.G.R. Educational and Research Institute Department of Computer Science Chennai India Dr. M.G.R. Educational and Research Institute Department of Computer Applications Chennai India

ISBN: (纸本)9798350308167

Today, the world is highly depended on Unified Payments Interface (UPI) system for all kind of financial transactions. Whether Banks or people, everyone relies on UPI transactions for personal or commercial purposes. Since it provides a simple interface with round the clock availability, the financial activities became easier and faster. But the security concerns are still there, for which continuous research processes are carried on all around the world. In the context of UPI system, the information security needs to be assured both during storage and transit. For providing security in information storage and data transfer, the best solution till now is Blockchain Technology enabled Smart Banking systems. The decentralized feature and use of smart contracts of Blockchain will help the transactions to be immutable, more secured and distributed. The usage of high degree cryptographic encryptions and usage of appropriate consensus algorithms can make the data purely tamper proof. This paper describes the features that should be possessed by a Blockchain technology enabled UPI system that will help to have high security for all the financial activities and transactions. © 2023 IEEE.

关键词： consensus algorithms Consortium Blockchain Cryptographic algorithms Device Binding Merkle Tree National Payments Corporation of India Payment Service Providers Sidechain Signed QR/Intent Smart Contracts Tamper-Proof Digital Ledger Two-factor MPIN Authentication UPI 123Pay

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The convergence rate of Newton-Raphson consensus optimization for quadratic cost functions

The convergence rate of Newton-Raphson consensus optimizatio...

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IEEE Annual Conference on Decision and Control

作者： Filippo Zanella Damiano Varagnolo Angelo Cenedese Gianluigi Pillonetto Luca Schenato Department of Information Engineering University of Padova

ISBN: (纸本)9781467320658

We consider the convergence rates of two convex optimization strategies in the context of multi agent systems, namely the Newton-Raphson consensus optimization and a distributed Gradient-Descent opportunely derived from the first. To allow analytical derivations, the convergence analyses are performed under the simplificative assumption of quadratic local cost functions. In this framework we derive sufficient conditions which guarantee the convergence of the algorithms. From these conditions we then obtain closed form expressions that can be used to tune the parameters for maximizing the rate of convergence. Despite these formulae have been derived under quadratic local cost functions assumptions, they can be used as rules-of-thumb for tuning the parameters of the algorithms in general situations.

关键词： Distributed optimization Convex optimization consensus algorithms Multi-agent systems Newton-Raphson methods Rate of convergence Multi-agent systems Converge Cost functions Convex function Newton-Raphson method Quadratic

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