Fast ReRoute Model with MultiMedia Quality Protection
Oleksandr V. Lemeshko, Maryna Yevdokymenko, Oleksandra Yeremenko · 2020 IEEE 15th International Conference on Advanced Trends in Radioelectronics, Telecommunications and Computer Engineering (TCSET) · 2020
In this work, a tensor fast rerouting flow-based model with the protection of the multimedia quality was proposed. In the presented model, the following constraints and conditions were introduced: multipath routing strategy implementation, flow conservation conditions under consideration of possible packet loss at the network nodes, as well as links overload prevention that used both in the primary or the backup paths. At the same time, the conditions of Quality of Experience level protection defined in terms of multimedia quality over the primary and the backup paths, which is the novelty of the presented solution. The tensor network formalization allowed to obtain such conditions and calculate the Quality of Service indicators, namely, packet loss probability and average end-to-end delay for audio and video flows transmitted in the multimedia session by the primary and backup paths. The condition under maximization of the overall network performance has been selected as the optimality criterion.