Statistical characteristics of serious network failures in Japan

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Due to significant environmental changes in the telecommunications market, network failures affect socioeconomic activities more than ever before. However, the health of public networks at a national level has not been investigated in detail. In this paper, we investigate the statistical characteristics of interval, duration, and the number of users affected for serious network failures, which are defined as network failures that last for more than two hours and affect more than 30,000 users, that occurred in Japan during Japanese fiscal years 2008-2012 (April 2008-March 2013). The results show that (i) the interval follows a Poisson process, (ii) the duration follows a Pareto distribution, (iii) the number of users affected follows a piecewise Pareto distribution, (iv) the product of duration and the number of users affected roughly follow a distribution that can be derived from a convolution of two distributions of duration and the number of users affected, and (v) the relationship between duration and the number of users affected differs from service to service.

Original languageEnglish
Pages (from-to)126-134
Number of pages9
JournalReliability Engineering and System Safety
Volume131
DOIs
Publication statusPublished - 2014
Externally publishedYes

Fingerprint

Convolution
Japan
Telecommunication
Health
Pareto Distribution
Interval
Poisson process
Telecommunications

Keywords

  • Failure duration
  • Failure interval
  • Network failure
  • Number of users affected

ASJC Scopus subject areas

  • Safety, Risk, Reliability and Quality
  • Industrial and Manufacturing Engineering
  • Applied Mathematics

Cite this

Statistical characteristics of serious network failures in Japan. / Uchida, Masato.

In: Reliability Engineering and System Safety, Vol. 131, 2014, p. 126-134.

Research output: Contribution to journalArticle

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