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Improved Estimates for the Reliability Indicators of Information and Communication Network Objects with Limited Source Information

  • D. MogylevychEmail author
  • I. KononovaEmail author
Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 560)

Abstract

Analytical relationships are given for quantitative assessment of the lower and upper bounds of reliability indicators for telecommunication objects of two classes: (a) objects with structural redundancy, in which the connection time of backup elements is so small that it can be almost neglected; (b) objects with structural and temporary redundancy, in which connection time is the final (usually random) quantity. The analysis of these relations allowed us to distinguish functionals characterizing the reliability of the objects under consideration, for which exact boundary values were determined. These results made it possible to obtain two-sided assessments of the reliability indicators of the objects of the above classes under conditions when the information on the distribution functions of the connection time of backup elements and the recovery time is limited by knowledge of only two initial moments. Also considered an important case for practice, in which, along with permanent refusals in the equipment of an object, failures may also occur. Analytical relationships have been obtained that allow one to calculate two-sided assessments of the reliability indicators of objects with structural and temporary redundancy, in which equipment failures are taken into account along with refusals.

This chapter concludes with a statement of the results that allow one to find two-way assessments of the reliability indicators of systems with a consistent (in the sense of reliability) connection of objects in which structural or structural and temporary redundancy is provided.

Keywords

Information and communication networks Refusal Failure Redundancy Readiness index Reliability index 

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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”KyivUkraine

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