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IEEE International Conference on Acoustics, Speech and Signal Processing

作者： Anit Kumar Sahu Soummya Kar Department of Electrical and Computer Engineering Carnegie Mellon University Pittsburgh PA 15213

ISBN: (纸本)9781479999897

This paper focuses on the problem of distributed composite hypothesis testing in a network of sparsely interconnected agents, in which only a small section of the field modeling parametric alternatives is observable at each agent. A recursive generalized likelihood ratio test (GLRT) type algorithm in a distributed setup of the consensus-plus-innovations form is proposed, in which the agents update their parameter estimates and decision statistics by simultaneously processing the latest sensed information (innovations) and information obtained from neighboring agents (consensus). This paper characterizes the conditions and the testing algorithm design parameters which ensure that the probabilities of decision errors decay to zero asymptotically in the large sample limit. Finally, simulation studies are presented which illustrate the findings.

关键词： Distributed Inference consensus algorithms Generalized Likelihood Ratio Tests Hypothesis Testing Large Deviations Analysis Hypothesis testing tradeoffs likelihood ratio Agents

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How to Choose a Timing Model?

How to Choose a Timing Model?

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Annual IEEE/IFIP International Conference on Dependable Systems and Networks

作者： Idit Keidar Alexander Shraer Department of Electrical Engineering Technion Haifa 32000 Israel

ISBN: (纸本)9781424430826

When employing a consensus algorithm for state machine replication, should one optimize for the case that all communication links are usually timely, or for fewer timely links? Does optimizing a protocol for better message complexity hamper the time complexity? In this paper, we investigate these types of questions using mathematical analysis as well as experiments over PlanetLab (WAN) and a LAN. We present a new and efficient leader-based consensus protocol that has O(n) stable-state message complexity (in a system with n processes) and requires only O(n) links to be timely at stable times. We compare this protocol with several previously suggested protocols. Our results show that a protocol that requires fewer timely links can achieve better performance, even if it sends fewer messages.

关键词： Synchrony assumptions Eventual synchrony Failure detectors consensus algorithms FT Middleware fault test device protocols communication complexity Telecommunication links complexity classes Local Area Networks mathematical analysis Choose

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Distributed soft thresholding for sparse signal recovery

Distributed soft thresholding for sparse signal recovery

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IEEE Global Communications Conference

作者： C. Ravazzi S. M. Fosson E. Magli Department of Electronics and Telecommunications Politecnico di Torino

ISBN: (纸本)9781479913510

In this paper, we address the problem of distributed sparse recovery of signals acquired via compressed measurements in a sensor network. We propose a new class of distributed algorithms to solve Lasso regression problems, when the communication to a fusion center is not possible, e.g., due to communication cost or privacy reasons. More precisely, we introduce a distributed iterative soft thresholding algorithm (DISTA) that consists of three steps: an averaging step, a gradient step, and a soft thresholding operation. We prove the convergence of DISTA in networks represented by regular graphs, and we compare it with existing methods in terms of performance, memory, and complexity.

关键词： Distributed compressed sensing Distributed optimization consensus algorithms Gradient-thresholding algorithms Signal restoration Sensor networks Distribute distributed algorithms Steps Communication Research Privacy Threshold New classes

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Solving Sensor Network Coverage Problems by Distributed Asynchronous Actor-Critic Methods

Solving Sensor Network Coverage Problems by Distributed Asyn...

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Proceedings of the 46th IEEE Conference on Decision and Control, Pages 1383-1838

作者： Paris Pennesi Ioannis Ch. Paschalidis Dipartimento di Ingegneria Informatica Gestionale e dell'Automazione Università Politecnica delle Marche Ancona Italy Information & Systems Eng. Department of Manufacturing Eng. and Department of Electrical and Computer Eng Boston University Brookline MA USA

ISBN: (纸本)9781424414970;1424414970

Multi-robots systems exploiting sensor network capabilities can be successfully employed to cope with several tasks, including coverage, surveillance, target tracking, and foraging, in partially known environments subject to dynamical changes. In this paper we define a reward collection problem, where both the positions and the values of the rewards change with time. We propose a distributed actor-critic method to solve the problem, establish its convergence, and demonstrate its adaptation capabilities. Our analysis leverages ideas from actor-critic methods and consensus algorithms.

关键词： Actor-critic methods consensus algorithms dynamic programming sensor networks

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Use of Blockchain to Track DOD Funding and Auditing

Use of Blockchain to Track DOD Funding and Auditing

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作者： Prasanna, P AIR FORCE INSTITUTE OF TECHNOLOGY WRIGHT-PATTERSON AFB OH GRADUATE SCHOOL OF ENGINEERING AND MANAGEMENT AIR FORCE INSTITUTE OF TECHNOLOGY WRIGHT-PATTERSON AFB OH

The Department of Defense (DoD) currently faces a significant problem when it comes to auditing and tracking financial transactions. TheDoD has failed every audit since 2017 although it is gradually improving its auditable rating year after year. Concurrently, Blockchain is anemerging technology that has typically been used for cryptocurrencies but has slowly been adapted by private enterprises for their auditingand invoicing problems. This study investigates the value proposition of blockchain technology to improve DoD financial tracking andauditing. To test the hypothesis that blockchain is the optimal option for the DoD, this paper employs an industry blockchain adoptionflowchart, requirements matrix for financial regulations and audit weaknesses, and a rigorous benchmark comparison chart between thecurrent financial system and well-established private companys blockchain (which DoD could replicate). The results of the flowchart andmatrix demonstrate that Permissioned Private Blockchain can track government transactions in instances where contracts between agovernment agency and contractor could be condensed into variables and formulas. The outcome of the comparison shows that a DoDreplicated blockchain system would excel at Latency, Error Rate, Time, but not Cost Metrics when compared to other established DoDfinancial accounting systems.

关键词： Information systems Distributed ledger Blockchain consensus algorithms Money Air force Test and evaluation Computer programming Cryptocurrency Smart contracts Department of defense Supply chain United states government Commerce Cryptography Financial management Governments

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Robust, Low-Cost, and Accurate Detection of Recycled Integrated Circuits (ICs) using Digital Signatures

Robust, Low-Cost, and Accurate Detection of Recycled Integra...

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作者： Guin, U Auburn University AL Defense Advanced Research Projects Agency (DARPA) Arlington VA Air Force Research Laboratory Wright-Patterson Air Force Base OH

The continuous growth of counterfeit integrated circuits (ICs) in the electronic components supply chain calls for an immediate solution. This project addresses trustworthy electronics by developing an efficient method for the detection of recycled ICs, thereby enhancing the safety and security of US cyber infrastructure. The core of the proposed on-chip structure utilizes a ring oscillator and a small non-volatile memory (NVM). The on-chip structure stores the RO frequency, the measurement conditions, and a digital signature in the NVM.

关键词： Supervised machine learning Integrated circuits Electronic components Very large scale integration Information science Test methods Air force Field programmable gate arrays Authentication Governments Test and evaluation consensus algorithms Deoxyribonucleic acids Detection Manufacturing Semiconductor manufacturing Semiconductors

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Blockchain Data Structures for Tracking DoD Budget Spending

Blockchain Data Structures for Tracking DoD Budget Spending

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作者： Hayeri, Y. M Taylor, I Stevens Institute of Technology Hoboken NJ Office of the Under Secretary of Defense for Acquistion and Sustainment Washington DC OFFICE OF THE UNDER SECRETARY OF DEFENSE RESEARCH AND ENGINEERING WASHINGTON DC DIR DEFENSE TEST AND EVALUATION Office of the Under Secretary of Defense for Acquisition and Sustainment Washington DC

This study aims to develop a blockchain data structure and a prototype to track budgeting as funds flow between the DoD elements. The objective of the project is to improve insights into transactions to enable acquisition funding flexibility and to better spend tracking information for DoD planning, management, and macro balancing. In this project, a prototype for organizing a blockchain data structure is proposed with the aid of graph analysis concepts. Since obtaining real-world data for DoD budget management proved difficult, we utilized a high-level data structure based on samples provided during this project as a surrogate for a more realistic dataset. Upon developing a preliminary roadmap, and a graph network demonstrating DoD fund transfers, seven novel use cases have been proposed to show the applicability of this solution.

关键词： Blockchain consensus algorithms Supply chain Organizational structure Contracts Intellectual property Smart contracts Contractors Department of defense Government procurement Governments Law United states government Deployment Information systems United states Logistics

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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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第三十一届中国控制会议

作者： ZHANG Baoqun,SONG Shenmin,ZHENG Zhong,WEI Xiqing Harbin Institute of Technolgy,Harbin 150001,P.R.China

The coordinated formation control problem for multiple spacecraft regarding formation maneuvers is addressed in this *** 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 ***,passive filters are employed to design an output feedback coordinated formation controller without velocity *** 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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Network Coordinated Distributed Demand Management for Optimal Large-Scale Charging of PHEVs/PEVs

Network Coordinated Distributed Demand Management for Optima...

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IEEE Power and Energy Society General Meeting

作者： Navid Rahbari Asr Mo-Yuen Chow electrical and computer engineering department of North Carolina State University

ISBN: (纸本)9781479913022

Designing efficient demand management policies for charging Plug-in Hybrid Electrical Vehicles (PHEVs) and Plug-in Electrical Vehicles (PEVs) is becoming a vital issue as increasing numbers of these vehicles are being introduced to the power grid. In order to avoid overloads and satisfy customer preferences in terms of the time and cost of charging, a distribution-level charging algorithm can be formulated to solve a constrained optimization problem. In this paper, we have developed a novel network distributed algorithm for optimal charging of PHEVs/PEVs within a consensus algorithm framework. In our design, the global optimal power allocation under all local and global constraints is reached by peer-to-peer coordination of charging stations. Therefore, the need for a central control unit is eliminated. In this way, the single node congestion is avoided when the size of the problem is increased, and the system gains robustness against single link/node failures.

关键词： Plug-in Hybrid Electric Vehicle (PHEV) Plug-in Electric Vehicle (PEV) Karush-Kuhn-Tucker (KKT) Conditions consensus algorithms Decentralized Control

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A comprehensive review of blockchain technology: Underlying principles and historical background with future challenges

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Decision Analytics Journal 2023年 9卷

作者： Tripathi, Gautami Ahad, Mohd Abdul Casalino, Gabriella Department of Computer Science and Engineering Jamia Hamdard New Delhi India Department of Computer Science University of Bari Aldo Moro Italy

Blockchain is a distributed digital ledger technology that has revolutionized businesses, industries, and commerce by eliminating the need for a central storage and control authority. Blockchain presents time-stamped and immutable blocks of data that are not owned by any single entity but rather managed by a group of nodes or computers where each block is secured and linked using cryptographic principles. The immutable and decentralized nature of blockchain has redefined trust, ownership, identity, and financial systems by providing a secure, fast, transparent, and pseudo-anonymous solution. This paper provides a comprehensive review of blockchain technology focusing on the historical background, underlying principles, and the sudden rise in the popularity of blockchain technology. The paper also discusses the various consensus algorithms of blockchain technology. Next, the paper focuses on the various application areas and prospective use cases of blockchain technology with the underlying challenges and issues. Further, the paper presents some unconventional use cases of blockchain technology. The study also reviews state-of-the-art articles to provide a comprehensive overview of the various aspects of blockchain technology in varied domains. The comparison between traditional database systems and blockchain technology is presented, and the appropriate scenarios where blockchain-based solutions may or may not provide the best solutions are also discussed. Further, it discusses some of the most infamous security breaches that impacted the blockchain industry in the recent past. © 2023 The Author(s)

关键词： Blockchain technology consensus algorithms Cryptography Decentralized distributed ledger Immutability Transparency

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