Публікація: Optimization models of fault-tolerant and secure routing in a telecommunication network over disjoint paths
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Дата
2023
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Анотація
The dissertation solves an actual scientific and practical problem of optimizing the fault-tolerant and secure routing processes over disjoint paths in telecommunication networks (TCNs) by developing, improving, and investigating appropriate mathematical models. The analysis results confirmed the importance and priority of Quality of Service (QoS), fault tolerance, and network security in modern and prospective telecommunication networks. It is emphasized that to achieve this goal, the functionality of advanced traffic management technologies, and especially routing protocols, should be used to the maximum extent possible. The latest routing protocols should support multipath solutions, calculate paths that provide high indicators of Quality of Service and network security, and implement schemes of local, segment, and global protection (redundancy) of bandwidth and network elements under conditions of single and multiple failures. The problems of improving mathematical models, methods, and protocols of routing in TCN with their adaptation to modern requirements come to the forefront. An effective direction of routing models and methods improvement is the use of disjoint paths, which allows the introduction and further effective and optimal use of the network resources redundancy for systemic increase of QoS level, fault tolerance, and network security. The mathematical models of QoS routing in a telecommunication network over disjoint paths are improved in the dissertation work. The scientific novelty of DocuSign Envelope ID: 39D93768-F089-4D37-873A-75DCD1B7E616 9 the first mathematical model consists of introducing new conditions for balancing the routes’ capacity and using an updated optimality criterion of routing solutions, which allowed to ensure the maximization of the number and total capacity of the calculated paths in the routing process. The analysis of the study results showed that using the proposed model makes it possible to ensure the maximum possible bandwidth of the routing solution represented by a set of disjoint paths in cases of high network heterogeneity, i.e., when the bandwidths of TCN links differ significantly.
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Ключові слова
Quality of Service, Traffic, Fast Rerouting
Бібліографічний опис
El Haj Sleiman Batoul Hadi Optimization models of fault-tolerant and secure routing in a telecommunication network over disjoint paths : дис. ... д-ра філософії : 172 – Telecommunications and Radio Engineering / El Haj Sleiman Batoul Hadi ; М-во освіти і науки України, Харків. нац. ун-т радіоелектроніки. – Харків, 2023. – 156 с. – Бібліогр. : с. 138–153.