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Optimization of International ISDNs with Dynamic Routing under Reliability Constraint
Toshikane ODA Yu WATANABE
IEICE TRANSACTIONS (1976-1990)
Publication Date: 1990/02/25
Print ISSN: 0000-0000
Type of Manuscript: PAPER
Category: Communication Networks and Services
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Along with the advances in network digitalization and the development of new service capabilities, international telecommunication networks have been evolving toward ISDNs. The introduction of computer-controlled network operation techniques such as dynamic routing in the ISDN era will facilitate the highly efficient use of network resources with high reliabilities. In this paper, an international ISDN traffic profile model is introduced, and then a simple design method for international network using the dynamic routing of the pre-planned time-varying type is presented. A constraint concerning traffic survivability for robust network design is taken into account in the proposed method. The improvement of resource utilization and reliability performance attained by the introduction of the dynamic routing scheme is numerically evaluated based upon the design results for simplified models of international ISDNs.