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Reliable communication in the presence of failures

Kenneth P. Birman, Thomas A. Joseph
1987 ACM Transactions on Computer Systems  
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

Indika A. M. Balapuwaduge, Frank Y. Li, Vicent Pla
2018 IEEE Transactions on Wireless Communications  
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

Jorge E. Pezoa, Majeed M. Hayat
2014 IEEE Transactions on Parallel and Distributed Systems  
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

Irina Akhmetova, Timur Akhmetov, N. Voropai, S. Senderov, A. Michalevich, H. Guliev
2018 E3S Web of Conferences  
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]

H. Sivakumar, R. Venkatesan
1996 IFIP Advances in Information and Communication Technology  
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

Alaa EldeenSayedAhmed, Rania Ramadan Abd El-dayem
2012 International Journal of Computer Applications  
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

Zhaoxia Xie, G. Manimaran, V. Vittal, A.G. Phadke, V. Centeno
2002 IEEE Transactions on Power Systems  
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

Alberto Avritzer, Flávio P. Duarte, Rosa Maria Meri Leão, Edmundo de Souza e Silva, Michal Cohen, David Costello
2008 Proceedings of the 2008 conference of the center for advanced studies on collaborative research meeting of minds - CASCON '08  
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

Marcantonio Catelani, Lorenzo Ciani, Alessandro Bartolini, Cristiano Del Rio, Giulia Guidi, Gabriele Patrizi
2021 Sensors  
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

T Nishanbayev, A Muradova
2014 The Advanced Science Journal  
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

L. Lingard, G. Regehr, S. Espin, S. Whyte
2006 BMJ Quality & Safety  
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

Jong-Hau Hsu, Tai-Heng Chen, Yuh-Jyh Jong
2014 Pediatric Pulmonology  
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

Kyungbaek Kim, Nalini Venkatasubramanian
2010 2010 IEEE Global Telecommunications Conference GLOBECOM 2010  
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]

Alexandre Maurer, Xavier Défago
2015 arXiv   pre-print
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

M.A. Nasreen, Amal Ganesh, C. Sunitha
2016 Procedia Computer Science  
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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