Comprehensive Reliability Assessment Technique of Telecommunication Networks Equipment with Reducible Structure
Keywords:reliability, telecommunication equipment, refusals, failures, redundancy
Introduction. The effectiveness of the functioning of telecommunication systems, which belong to the class of complex technical systems, depends on the reliability of its subsystems and elements, as well as the complexity of the relationships between them. The aim of the article is to substantiate a general approach to a comprehensive assessment of the reliability of telecommunication equipment telecommunications network with a reducible structure with the development of a methodology for calculating equipment reliability indicators.
Main material. Formalized statement of the problem. The section provides a formalized description of the problem, as well as the limitations and assumptions used in this study.
General approach to solving the problem. The general approach to solving the problem is based on the use of the decomposition principle, which allows a phased assessment of the reliability of a telecommunication network at three interconnected levels: the first stage is at the level of individual equipment elements (such typical devices as routers, switches, servers, workers stations, IP-encryption equipment, etc.), in which various types of redundancy can be provided separately or jointly: structural, load, temporary; the second stage – at the telecommunication equipment level of information paths (routes); the third stage is at the telecommunication equipment level of information areas, which are a combination of equipment of various paths.
Methodology for solving the problem. A technique has been proposed for a comprehensive reliability assessment of telecommunication equipment of communication networks with a reducible structure, taking into account a combination of factors, some of which are aggressive and lead to a decrease in reliability (failures causing short-term interruptions in operation; steady equipment failures that need to be restored to serviceability of failed devices in a repair body ; insufficient qualification of the attendants), and others – support the normal functioning of the telecommunication equipment in at the given level (using separately or jointly various types of redundancy – structural, temporary, load, which leads to an increase in the efficiency of using redundancy).
Example. The given numerical example allows us to identify some new features of the reliability of the operation of the telecommunication equipment telecommunications network due, in particular, to the reliability models not only of steady failures, but also of failures leading to short-term interruptions in operation.
Conclusions. A promising area of further research is the justification of ways and methods to reduce the intensity of failures in existing and developing equipment, as well as the development of effective ways to neutralize (reduce) their impact on the functioning of telecommunication equipment telecommunication networks.
Netes V.A. (2014) Nadezhnost setei sviazy v standartakh MЕK [Reliability of communication networks in IEC standards]. Vestnyk sviazy, no. 2, рр.13–15.
Semenov A. Poziaeva Z. (2011) Uvelychenye nadezhnosty system optycheskoi sviazy [Increasing the reliability of optical communication systems]. Zhurnal setevykh reshenyi / LAN.
Ahmad W., Hasan O., Pervez U. and Qadir J. (2017) Reliability modeling and analysis of communication networks. Journal of Network and Computer Applications, Vol. 78, pp. 191-215. DOI: 10.1016/j.jnca.2016.11.008
Dieves V. (2016) Dependability in Future Battle Network System — Transport Layer Ability to Maintain Quality of Service. Wireless Sensor Network, Vol. 08, Iss. 10, pp. 211-228. DOI: 10.4236/wsn.2016.810017
Subach I.Yu. (2016) The method of determined weight direction of communication information and telecommunications network. Systemy obrobky informatsii, no. 5 (142), рр. 158-161 (in Ukrainian).
Samaniego F. J. Studies in Structural, Stochastic and Statistical Reliability for Communication Networks and Engineered Systems. Final Report on ARO grant W911NF-11-1-0428, 2016, no. 31.
Bailis P., Kingsbury K. (2014) The Network is Reliable. An informal survey of real-world communications failures. AcmQueue, vol.12, Iss. 7, pp. 1–20. DOI: 10.1145/2639988.2655736.
Hall P., Jin Y. and Samaniego F.J. (2015) Nonparametric estimation of component reliability based on lifetime data from systems of varying design. Statistica Sinica, no. 25, рр. 1313 – 1335. DOI: 10.5705/ss.2014.192
Jin Y., Hall, P., Jiang J. and Samaniego, F. J. (2017) Estimating Component Reliability Based on Failure Time Data from a System of Unknown Design. Statistica Sinica, no. 27, pp. 479-499. DOI: 10.5705/ss.202015.0209
Zhu P., Han J., Guo Y. and Lombardi F. (2016) Reliability and Criticality Analysis of Communication Networks by Stochastic Computation. IEEE Network, Vol. 30, Iss. 6, pp. 70-76. DOI: 10.1109/mnet.2016.1500221nm
Stepanova Y.V., Abdulvasea A. and Zhuven N. (2015) Analyz perspektyvnуkh podkhodov k povуshenyiu nadezhnosty konverhentnуkh korporatyvnуkh setei sviazy [Analysis of promising approaches to improving the reliability of converged corporate communications networks]. Т-Соmm Telecommunications and transport, no. 9, рр. 44–51.
Meikshan V.I. (2010) Analysis of equipment faults influence on performance of multiservice network with adaptive routing. Dokladу AN VSh RF. Tekhnycheskye nauky, no. 2 (15), pp. 69–80 (in Russian).
Ignatov A.V. and Shuvalov V.P. (2015) The reliability of subscriber access networks LR-PON. T-Comm Telecommunications and transport, vol. 9, no. 5, pр. 25–30.
Li T., Cole B., Morton P. and Li D. (1998) Cisco Hot Standby Router Protocol (HSRP). RFC 2281. Network Working Group.
DSTU 2860-94. (1995) Nadiinist tekhniky. Terminy ta vyznachennia [State Standard of Ukraine 2860-94. Dependability of technics. Terms and definitions]. Kyiv, 96 р.
Stoikova L.S. (2010) Obobshchennуe neravenstva Chebуsheva y ykh prymenenye v matematycheskoi teoryy nadezhnosty [Generalized Chebyshof inequalities and their application in mathematical reliability theory]. Kybernetyka y systemnуi analyz, no. 3, рр. 139–144.
Tymoshenkov S., Symonov B. and Horoshko V. (2015) Osnovу teoryy nadezhnosty [Fundamentals of reliability theory]. Moskva, 445 р.
Vyktorova V. and Stepanians A. (2016) Modely y metodу rascheta nadezhnosty tekhnycheskykh system [Models and methods for calculating the reliability of technical systems]. Lenand, 256 р.
Mohylevych D.I., Kredentser B.P., Butochnov O.M. and Minochkin A.I. (2013) Nadiinist system z nadlyshkovistiu: metody, modeli, optymizatsiia [Reliability of systems with redundancy: methods, models, optimization]. Kyiv, 342 р.
Kononova I., Kredentser B. and Mogylevych D. (2017) An analytical model of complex evaluation reliability of the telecommunication equipment duplicate set. Zbirnyk naukovykh prats VITI, no. 4, рр. 48–56 (in Ukrainian).
Mohylevych D.І., Kredentser B.P. and Mynochkyn A.І. (2012) Otsenka еkspluatatsyonno-tekhnycheskykh kharakterystyk obektov telekommunykatsyi pry apryornoi neopredelennosty [Evaluation of operational and technical characteristics of telecommunications facilities with a priori uncertainty]. Kyev, 332 р.
Mogylevych D. and Kononova I. (2019) Improved Estimates for the Reliability Indicators of Information and Communication Network Objects with Limited Source Information. In: Ilchenko M., Uryvsky L., Globa L. (eds). Advances in Information and Communication Technologies. UKRMICO 2018. Lecture Notes in Electrical Engineering, Springer, Champ., vol 560, pp. 101-117. DOI: 10.1007/978-3-030-16770-7_5.
Kononova I. (2019) Taking into consideration of the multiple mode of the functioning and characteristics of the control in reliability models of replacement time systems. Visnyk Universytetu "Ukraina", no. 2 (23), рр. 238–248. DOI: 10.36994/2707-4110-2019-2-23-22 (in Ukrainian).
How to Cite
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).