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Reliable communication in the presence of failures
1987
ACM Transactions on Computer Systems
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No information survives a failure (by fault tolerance we refer to continued operation in the presence of failures, not recovery from "stable" storage). ...
Clearly, failure detection by time-out cannot be more reliable than the underlying communication system: A series of message losses can always mimic a failure. ...
LIMITATIONS One weakness of the work described in this paper is its tendency to block in the presence of partitioning failures when two or more subgroups of operational sites form, within which communication ...
doi:10.1145/7351.7478
fatcat:xl3agw7chbcklfufuvvl6ipec4
Dynamic Spectrum Reservation for CR Networks in the Presence of Channel Failures: Channel Allocation and Reliability Analysis
2018
IEEE Transactions on Wireless Communications
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The performance of such a CRN in the presence of homogeneous and heterogeneous channel failures is investigated considering different channel failure and repair rates. ...
Channel failures, which are typically caused by hardware and software failures or/and by intrinsic instability in radio transmissions, can easily result in network performance degradation. ...
the 5G paradigm which can tackle challenges such as ultra reliable communication (URC). ...
doi:10.1109/twc.2017.2772240
fatcat:zks52qddbzgwrkz4ejexjbn53m
Reliability of Heterogeneous Distributed Computing Systems in the Presence of Correlated Failures
2014
IEEE Transactions on Parallel and Distributed Systems
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The reliability model is further utilized to develop and optimize a novel class of dynamic task reallocation (DTR) policies that maximize the reliability of DCSs in the presence of correlated failures. ...
The analytical component of the model comprises a generalization of a previously developed model for reliability of non-Markovian DCSs to a setting where specific patterns of simultaneous failures in CEs ...
To maximize the reliability of DCSs in the presence of correlated failures, a novel class of DTR policies is also developed. ...
doi:10.1109/tpds.2013.78
fatcat:4t22ps5oazgqbgtwm34udjrhdi
Analysis of additional factors for determining heat network pipelines failure rates
2018
E3S Web of Conferences
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As a result of the research, the additional factors that have a significant impact on the reliability of heat supply to consumers have been determined. ...
The impact of these factors on the heat network reliability relying on the experimental data provided by regional heat supply organizations has been assessed. ...
presence of intersections with communications, the percentage of pipeline lot failure. ...
doi:10.1051/e3sconf/20185801011
fatcat:kel6czt7lzc3xes6gzzpuh67bi
Reliability and Performance Analyses of Balanced Gamma Network for use in Broadband Communication Switch Fabrics
[chapter]
1996
IFIP Advances in Information and Communication Technology
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The performance of a multistage interconnection network in the presence of faults gives a better understanding of the dependability of the network than the reliability measures normally used. ...
The input-output and network mean times to failure of the balanced gamma network are also calculated. ...
Subsituting the lower bound experession (7) in (11) we have (12)
PERFORMANCE OF THE BG NETWORK IN THE PRESENCE OF SE FAULTS The various reliability measures explained in the previous section ...
doi:10.1007/978-0-387-34987-9_47
fatcat:xstmbmzc7vfhpi4nsvzqxxqoxm
The Modeling and Implementation of Reliable Mobile Agent Systems using Group Communication Services
2012
International Journal of Computer Applications
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bad communication or computer agent's crash with the recent increase of considering mobile agent in different E-World applications, reliability is considered as a crucial issue to be faced. ...
The proposed approach is dynamic in the sense that it allows a flexible membership mechanism to join or leave a mobile agent groups used in achieving the reliable execution. ...
Reliable means the ability to overcome the presence of failures. This requires a mechanism for detecting the failures then recovery. ...
doi:10.5120/7355-0175
fatcat:pzwy344lhzaahpgtb5f3zt6wy4
An information architecture for future power systems and its reliability analysis
2002
IEEE Transactions on Power Systems
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The real-time operating and control system is modeled with various redundancy configurations; the reliabilities of different configurations are studied and compared for practical values of component failure ...
Analysis of 162 disturbances from 1979 to 1995 reported by the North American Electric Reliability Council (NERC) indicates the importance of information systems under the regulated and competitive environment ...
Moreover, higher redundancy means higher service level with the presence of "certain failure scenarios." ...
doi:10.1109/tpwrs.2002.800971
fatcat:wugtyssmjzf7vg3ys3riaapgfy
Reliability estimation for large distributed software systems
2008
Proceedings of the 2008 conference of the center for advanced studies on collaborative research meeting of minds - CASCON '08
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In this paper, we present our experience to estimate the reliability of a large distributed system composed of several hundred points of presence. ...
The system's reliability metric is required by contract to be obtained. A simple approach is presented to accurately approximate the desired metrics. ...
We have defined a reliability estimation function that weights the probability of being at a specific failure state by the fraction of points of presence impacted by a specific service outage. ...
doi:10.1145/1463788.1463804
dblp:conf/cascon/AvritzerDLSCC08
fatcat:l3rngiffq5e37onjm7lys5ty6i
Reliability Analysis of Wireless Sensor Network for Smart Farming Applications
2021
Sensors
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The reliability of the system has been evaluated by looking for both hardware failures and communication errors. ...
and the real arrangement of the nodes deployed in the field. ...
Conflicts of Interest: The authors declare no conflict of interest. Sensors 2021, 21, 7683 ...
doi:10.3390/s21227683
pmid:34833759
pmcid:PMC8619464
fatcat:ayo3ruucwne4lhb5q37usa2v7u
The System Research of Reliability Indexes of Infocommunication Networks with Distributed Structure
2014
The Advanced Science Journal
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Showed that development of methods and algorithms of system research of reliability indexes of the infocommunication network in terms of workload of its components is one of the main problems in the design ...
In this article the questions of the system research of reliability indexes of the infocommunication network with distributed structure are considered. ...
the change reliability status of the i-th of the communication channel in the form of a sequence of intervals presence and absence of the operation of the channel. ...
doi:10.15550/asj.2014.04.059
fatcat:e5gagzqd2rfavk54hf5ckzrtpi
A theory-based instrument to evaluate team communication in the operating room: balancing measurement authenticity and reliability
2006
BMJ Quality & Safety
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Discussion: Reasonable inter-rater reliability was shown by the instrument in assessing the relative rate of communication failures displayed per procedure. ...
However, inter-rater reliability regarding the total number of communication failures per procedure was reasonable (mean ICC across pairs 0.72). ...
Analyses were separately performed for the presence and type of communication failure and for the presence and type of resulting consequences. ...
doi:10.1136/qshc.2005.015388
pmid:17142591
pmcid:PMC2464881
fatcat:r3bt4wjkevg7jcoed65gp7gjiq
Community-acquired pneumonia in pediatric patients with acute neuromuscular respiratory failure: A microbiologic perspective
2014
Pediatric Pulmonology
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The presence of fever at admission was comparable, 42% (5/12) versus 50% (2/4) between success group and failure group. ...
To compare the differences between success group (n ¼ 12) and failure group (n ¼ 4) in our patients, we analyzed infection-related variables including presence of fever at admission to our pediatric intensive ...
The presence of fever at admission was comparable, 42% (5/12) versus 50% (2/4) between success group and failure group. ...
doi:10.1002/ppul.22959
pmid:24719398
fatcat:ts6et2m5zrej7jt65o6clehqlm
Assessing the Impact of Geographically Correlated Failures on Overlay-Based Data Dissemination
2010
2010 IEEE Global Telecommunications Conference GLOBECOM 2010
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data dissemination, to the extent possible, in terms of reliability and latency. ...
In this approach, the overlay nodes select neighbors which are most likely distinct in presence of a geographical failure; we show how an overlay structure constructed using our proximity-aware neighbor ...
Overlay structures such as forests and meshes inherently support some degree of redundancy; this is often sufficient to support reliable data dissemination in the presence of limited random failures. ...
doi:10.1109/glocom.2010.5685229
dblp:conf/globecom/KimV10
fatcat:t6bqlg4xb5bhbjxnhnlvuzos2a
Reliable Communication in a Dynamic Network in the Presence of Byzantine Faults
[article]
2015
arXiv
pre-print
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Our simulations indicate a clear benefit of using our algorithms for reliable communication in those contexts. ...
We prove the necessary and sufficient condition (that is, the weakest possible condition) to ensure reliable communication in this context. ...
In this paper, we prove the necessary and sufficient condition for reliable communication in dynamic networks, in the presence of up to k Byzantine failures. ...
arXiv:1402.0121v4
fatcat:foe6nptjcbh4lmp7in5pxulsp4
A Study on Byzantine Fault Tolerance Methods in Distributed Networks
2016
Procedia Computer Science
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Here, the problem of reliably broadcasting messages in a mutli hop network is dealt, where some nodes are likely to fail. ...
Building robust network services that can tolerate a wide range of failure types is a fundamental problem in distributed systems. ...
A brief description on the existing solutions for Byzantine broadcast was stated to ensure reliable communication even in the presence Byzantine faults. ...
doi:10.1016/j.procs.2016.05.125
fatcat:5e6jlnupczfb5agidgxlxx7sya
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