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2002 | 12 | 2 | 257-267
Tytuł artykułu

The branch and bound algorithm for a backup virtual path assignment in survivable ATM networks

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Issues of network survivability are important, since users of computer networks should be provided with some guarantees of data delivery. A large amount of data may be lost in high-speed Asynchronous Transfer Mode (ATM) due to a network failure and cause significant economic loses. This paper addresses problems of network survivability. The characteristics of virtual paths and their influence on network restoration are examined. A new problem of Backup Virtual Path Routing is presented for the local-destination rerouting strategy. The function of the flow lost due to a failure of a single link is chosen as the performance index. The problem of finding the optimal virtual path assignment is NP-complete. Therefore we develop an exact algorithm based on the branch and bound approach. Moreover, two heuristic algorithms are proposed. Numerical results are presented.
Słowa kluczowe
Rocznik
Tom
12
Numer
2
Strony
257-267
Opis fizyczny
Daty
wydano
2002
otrzymano
2001-01-19
poprawiono
2002-01-14
(nieznana)
2002-03-10
Twórcy
  • Division of Systems and Computer Networks, Faculty of Electronics, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
Bibliografia
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  • Iraschko R., MacGregor M. and Grover W. (1998): Optimal capacity placement for path restoration in STM or ATM mesh-survivable networks. - IEEE/ACM Trans. Networking, Vol. 6, No. 6, pp. 325-335.
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  • Kasprzak A. (1989): Optimization Algorithms of Flows, Channel Capacity and Topology in Computer Communication Networks. - Wrocław: Publishing House of the Wrocław Univ. Techn.
  • Kasprzak A. and Walkowiak K. (2000): Designing of virtual private networks in the public ATM network environment. - Proc. Conf. 34th Modelling and Simulation of Systems, MOSIS, Ostrava, Czech Republic, pp. 111-116.
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  • Walkowiak K. (2000a): Algorithms for assignment of virtual paths in survivable ATM networks. - Ph.D. Thesis, Sci. Papers, Division of Systems and Computer Networks of Wrocław Univ. Technol., Series: Preprints 200 (in Polish).
  • Walkowiak K. (2000b): An exact algorithm for designing backup virtual paths in survivable ATM networks. - Proc. Conf. 22nd International Scientific School, ISAT, Szklarska Poręba, pp. 263-271.
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Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.bwnjournal-article-amcv12i2p257bwm
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