Backup reliability of stochastic imperfect-node computer networks subject to packet accuracy rate and time constraints
In a real-time computer network, arcs and nodes have multi-state capacity, lead time, and packet accuracy rate (PAR). Evaluating the reliability of a network whose nodes are imperfect is complex, because node failure results in the disablement of adjacent arcs. Such a network is named a stochastic i...
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Published in | International journal of computer mathematics Vol. 90; no. 3; pp. 457 - 474 |
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Main Authors | , |
Format | Journal Article |
Language | English |
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Taylor & Francis
01.03.2013
Taylor & Francis Ltd |
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ISSN | 0020-7160 1029-0265 |
DOI | 10.1080/00207160.2012.736616 |
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Abstract | In a real-time computer network, arcs and nodes have multi-state capacity, lead time, and packet accuracy rate (PAR). Evaluating the reliability of a network whose nodes are imperfect is complex, because node failure results in the disablement of adjacent arcs. Such a network is named a stochastic imperfect-node computer network (SINCN). Under the strict assumption that each arc has a deterministic capacity, the quickest path problem is to find a path that sends a specific amount of data with minimum transmission time. Subject to both an assured PAR and time constraints, this paper proposes an efficient algorithm to evaluate the system reliability of an SINCN. Furthermore, a routing scheme is adopted to reinforce the system reliability. Accordingly, reliability based on the routing scheme is calculated. An application of our method on the Taiwan academic network is described to show its impact on the backup reliability for different routing schemes. |
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AbstractList | In a real-time computer network, arcs and nodes have multi-state capacity, lead time, and packet accuracy rate (PAR). Evaluating the reliability of a network whose nodes are imperfect is complex, because node failure results in the disablement of adjacent arcs. Such a network is named a stochastic imperfect-node computer network (SINCN). Under the strict assumption that each arc has a deterministic capacity, the quickest path problem is to find a path that sends a specific amount of data with minimum transmission time. Subject to both an assured PAR and time constraints, this paper proposes an efficient algorithm to evaluate the system reliability of an SINCN. Furthermore, a routing scheme is adopted to reinforce the system reliability. Accordingly, reliability based on the routing scheme is calculated. An application of our method on the Taiwan academic network is described to show its impact on the backup reliability for different routing schemes. In a real-time computer network, arcs and nodes have multi-state capacity, lead time, and packet accuracy rate (PAR). Evaluating the reliability of a network whose nodes are imperfect is complex, because node failure results in the disablement of adjacent arcs. Such a network is named a stochastic imperfect-node computer network (SINCN). Under the strict assumption that each arc has a deterministic capacity, the quickest path problem is to find a path that sends a specific amount of data with minimum transmission time. Subject to both an assured PAR and time constraints, this paper proposes an efficient algorithm to evaluate the system reliability of an SINCN. Furthermore, a routing scheme is adopted to reinforce the system reliability. Accordingly, reliability based on the routing scheme is calculated. An application of our method on the Taiwan academic network is described to show its impact on the backup reliability for different routing schemes. [PUBLICATION ABSTRACT] |
Author | Huang, Cheng-Fu Lin, Yi-Kuei |
Author_xml | – sequence: 1 givenname: Yi-Kuei surname: Lin fullname: Lin, Yi-Kuei email: yklin@mail.ntust.edu.tw organization: Department of Industrial Management , National Taiwan University of Science & Technology – sequence: 2 givenname: Cheng-Fu surname: Huang fullname: Huang, Cheng-Fu organization: Department of Industrial Management , National Taiwan University of Science & Technology |
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SubjectTerms | Accuracy Algorithms Back up systems backup reliability Backups Computer networks Mathematical problems Networks packet accuracy rate Packets (communication) Routing Routing (telecommunications) routing scheme service level agreement Software reliability stochastic imperfect-node computer network Stochastic models Stochasticity System reliability |
Title | Backup reliability of stochastic imperfect-node computer networks subject to packet accuracy rate and time constraints |
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