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The Curses of Blockchain Decentralization [article]

Shumo Chu, Sophia Wang
2018 arXiv   pre-print
Our key findings are that true decentralization is hard to achieve due to the skewed mining power and that a fully decentralized blockchain inherently limits scalability as it incurs a throughput upper  ...  Further, we identify the major challenges in blockchain decentralization.  ...  ACKNOWLEDGMENTS The authors would like to thank Dr. Xi Wang for his detailed and constructive comments.  ... 
arXiv:1810.02937v1 fatcat:rctjhu3q5jgrdfeb5itfa2oh54

Fault-Tolerance in the Scope of Cloud Computing

A. U. Rehman, Rui L. Aguiar, Joao Paulo Barraca
2022 IEEE Access  
We then highlight fault-tolerance components and system-level metrics and identify the needs and applications of fault-tolerance in cloud computing.  ...  Fault-tolerance methods are required to ensure high availability and high reliability in cloud computing environments. In this survey, we address fault-tolerance in the scope of cloud computing.  ...  A fault is the hypothesized cause of an error, for instance, a software bug, human-made error, or hardware power failure'' [17] .  ... 
doi:10.1109/access.2022.3182211 fatcat:lse4gdul2beazdcqvwjworxmy4

Design and Implementation of the Heterogeneous Multikernel Operating System

Yauhen Klimiankou
2012 International Baltic Conference on Databases and Information Systems  
Significant changes in the computer systems design make reasonable the attempt of reviewing the operating system design to make it optimal for the new hardware platform.  ...  The proposed operation system design assume moving from monolithic centralized operating system to the decentralized network of the distributed independent nodes, each of which will play the role of the  ...  It will be possible to build computer system based on this design that can be broken only due to overall hardware fault (for example, power off).  ... 
dblp:conf/balt/Klimiankou12 fatcat:qf27isxhnncnrlnhlarodlbp2e

A Study of Resilient Architecture for Critical Software-Intensive System-of-Systems (Sisos)

Nadeem Akhtar, Malik Muhammad, Nadeem Salamat, Amnah Firdous, Mujtaba Husnain
2016 International Journal of Advanced Computer Science and Applications  
These systems need to tolerate faults in the face of change; they need a resilient architecture.  ...  An approach has been proposed for the analysis, design, formal specification and verification of critical Software-intensive System-of-Systems.  ...  Such systems need to tolerate faults in the face of change; in short they need to be resilient.  ... 
doi:10.14569/ijacsa.2016.070834 fatcat:g4kdhh7r7vg63k2dfsebkzjtx4

An Automated Deployment and Testing Framework for Resilient Distributed Smart Grid Applications [article]

Purboday Ghosh, Hao Tu, Timothy Krentz, Gabor Karsai, Srdjan Lukic
2022 arXiv   pre-print
Experiments with a microgrid energy management application developed using a decentralized software platform show that the deployment configuration can play an important role in enhancing the resilience  ...  Executing distributed cyber-physical software processes on edge devices that maintains the resiliency of the overall system while adhering to resource constraints is quite a challenging trade-off to consider  ...  ACKNOWLEDGMENT This work was funded in part by the Advanced Research Projects Agency-Energy (ARPA-E), U.S. Department of Energy, under Award Number DE-AR0000666.  ... 
arXiv:2206.13000v1 fatcat:o52sn722lfdm3ij7kn3zgy7e7i

State of the Art: Embedded Middleware Platform for A Smart Home

Ehsan Ullah Warriach
2013 International Journal of Smart Home  
In this paper, we present a review of the state of the art of pervasive middleware platforms for enabling a smart home.  ...  Environments with loosely coupled computational hosts, running heterogeneous hardware and software, associating one another in a just-in-time manner are characteristic of pervasive computing.  ...  Acknowledgement The research is supported by the EU project Smart Homes for All, contract FP7-224332.  ... 
doi:10.14257/ijsh.2013.7.6.27 fatcat:drbhcdiuxneuxgii6gkw4x4gpe

Advanced System Concepts for Future Civil Aircraft—an Overview of Avionic Architectures

A Nadesakumar, R M Crowder, C J Harris
1995 Proceedings of the Institution of Mechanical Engineers. Part G, Journal of Aerospace Engineering  
of the integrated modular avionics, which represents a change in philosophy of avionics design to a decentralized, distributed architecture that allows interchangeable componenis within a distributed aircraft  ...  With the capability of the avionics technology improving by an order of magnitude every few years, it is envisaged that the current philosophy of one box-per-function will soon reach its limits in terms  ...  Fault tolerance Fault tolerance has always been an essential requirement of aircraft design, and is also one of the key components in achieving a high level of integration.  ... 
doi:10.1243/pime_proc_1995_209_300_02 fatcat:ztlmpvfgw5dfribwfgfmyv2ihe

Critical Utility Infrastructural Resilience [article]

Giovanna Dondossola, Geert Deconinck, Felicita Di Giandomenico , Susanna Donatelli, Mohamed Kaaniche, Paulo Verissimo
2012 arXiv   pre-print
devices to be effectively deployed for the protection of citizens against cyber threats to electric power management and control systems.  ...  The subject of CRUTIAL research are small scale networked ICT systems used to control and manage the electric power grid, in which artifacts controlling the physical process of electricity transportation  ...  tolerance of remaining potential intrusions and designed-in faults.  ... 
arXiv:1211.5736v1 fatcat:wc73ib4fmrcnrgkmgr4ackntcq

Please, do not decentralize the Internet with (permissionless) blockchains! [article]

Pedro Garcia Lopez, Alberto Montresor, Anwitaman Datta
2019 arXiv   pre-print
This is derived from the recent surge in interest in byzantine fault tolerance and permissioned blockchains, which opens the door to a world where use of trusted third parties is not the only way to arbitrate  ...  Yet, there is still hope for more decentralization, albeit in a form somewhat limited with respect to the libertarian view of decentralized Internet: in cooperation rather than in competition with the  ...  It avoids costly proof-of-work by using different consensus algorithms such as crash fault-tolerant (CFT) or byzantine fault tolerant (BFT) protocols, the latter based on BFT-SMaRt [35] .  ... 
arXiv:1904.13093v1 fatcat:d6imefokw5cydpjdh2wfdpqvve

Author Index

2008 2008 IEEE International Symposium on Parallel and Distributed Processing  
Workers in Volunteer Computing Environments Hakem, Mourad Fault Tolerant Scheduling of Precedence Task Graphs on Heterogeneous Platforms Halbach, Mathias Is a Non-uniform System of Creatures More Efficient  ...  The Potential of Computation Reuse in High-Level Optimization of a Signal Recognition System Distefano, Salvatore Investigating Fault Tolerant Computing Systems Reliability Dittmann, Florian Algorithmic  ... 
doi:10.1109/ipdps.2008.4536576 fatcat:7unikf5ywjhjtdd6xtrmcom3gq

PlaTIBART: a Platform for Transactive IoT Blockchain Applications with Repeatable Testing [article]

Michael A. Walker, Abhishek Dubey, Aron Laszka, Douglas C. Schmidt
2017 arXiv   pre-print
This paper describes PlaTIBART, which is a platform for transactive IoT blockchain applications with repeatable testing that combines the Actor pattern (which is a commonly used model of computation in  ...  IoT and blockchain each provide different design goals, concepts, and practices that must be integrated, including the distributed actor model and fault tolerance from IoT and transactive information integrity  ...  This design allows the wrapper component to ensure that if any known or discovered faults arise from defects in the blockchain software, the wrapper can at least attempt to recover.  ... 
arXiv:1709.09612v2 fatcat:tuab46amnvfy7fcqaaid4x73vm

Dependability in fog computing: Challenges and solutions

Alraddady et al., La Trobe University, Melbourne, Australia
2021 International Journal of Advanced and Applied Sciences  
In the paper, we explore several solutions to increase dependability in fog computing such as fault tolerance techniques, placement policies, middleware, and data management mechanisms aiming to help system  ...  Therefore, fog computing was introduced in 2012 by Cisco as a decentralized computing environment that is considered to be more efficient in handling such a plethora in the number of requests.  ...  The architecture has been applied on a surveillance camera scenario to evaluate the proposed architecture in terms of fault tolerance, in this case, physical damage.  ... 
doi:10.21833/ijaas.2021.04.010 fatcat:d7uh4qxp5jeyndsulvkk7sttgy

Aerial MANETs: Developing a Resilient and Efficient Platform for Search and Rescue Applications

William H. Robinson, Adrian P. Lauf
2013 Journal of Communications  
Security also represents a challenge during the operation of the MANET. We consider the effects of limited resources (e.g., real-time processing power, battery packs) available on the aircraft.  ...  The advent of mobile ad-hoc networks (MANETs) and autonomous aircraft represents a unique opportunity to allow for rapid response, while minimizing the cost of deployment and increasing reliability and  ...  ACKNOWLEDGMENT This work was supported in part by TRUST (The Team for Research in Ubiquitous Secure Technology), which receives support from the National Science Foundation (NSF award number CCF-0424422  ... 
doi:10.12720/jcm.8.4.216-224 fatcat:2jzi2tfjp5hpzk2hpfx3ekzsxq

Design of Distributed Fault Tolerant Control Systems

Jose Sa da Costa, Mário J.G.C. Mendes
2008 IFAC Proceedings Volumes  
The FDI/FTC design method presented in this paper is able to use simple and verifiable principles coming mainly from a decentralized design, based on causal modelling partitioning of the NCS and distributed  ...  The design methodology is made easy using a FTCNS-MAS toolbox introduced in this paper. Recently, (Sa da Costa and Mendes, 2006) propose a general framework for the FDI/FTC design of complex and  ...  To facilitate the design of distributed fault tolerant control systems based on this approach a toolbox was introduced and an example of performance tests given for a simple case study.  ... 
doi:10.3182/20080706-5-kr-1001.02299 fatcat:z4w7bxpikzeibfp34shx5m4hca

Exploring the Role of Software Architecture in Dynamic and Fault Tolerant Pervasive Systems

Chiyoung Seo, Sam Malek, George Edwards, Daniel Popescu, Nenad Medvidovic, Brad Petrus, Sharmila Ravula
2007 First International Workshop on Software Engineering for Pervasive Computing Applications, Systems, and Environments (SEPCASE '07)  
We discuss the design and implementation of facilities we have provided in a tool-suite targeted for architecture-based development of fault tolerant pervasive systems.  ...  In this paper, we argue that an effective approach to developing software systems in this domain is to employ the principles of software architecture.  ...  This work is sponsored in part by the National Science Foundation under Grant number ITR-0312780 and by Bosch Research and Technology Center.  ... 
doi:10.1109/sepcase.2007.6 fatcat:tjif6xt62vhgxl7rtzfwjntmki
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