Hybrid Policy of Routing and Spectrum Assignment in Elastic Optical Networks
Hybrid Policy of Routing and Spectrum Assignment in Elastic Optical Networks作者机构：Digital Research and Expertise Unit (UREN) Virtual University of Ivory Coast (UVCI) Abidjan Côte d’Ivoire
出 版 物：《Open Journal of Applied Sciences》 (应用科学（英文）)
年 卷 期：2023年第13卷第12期
页 面：2387-2394页
学科分类：0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学]
主 题：Routing Spectrum Assignment Elastic Optical Network
摘 要：The major challenge in elastic optical networks is to determine the path of a connection and to allocate spectral resources on the links of this path. This problem consists of two sub-problems, routing and spectrum allocation. In the literature, these sub-problems are solved with a predefined order for all topology node pairs. Recent work proposes hybrid resolution algorithms based on connection demand and network state to provide a solution to these problems. However, the blocking rate of new connection requests has become problematic. In this work, we propose a hybrid routing and spectrum assignment policy to improve blocking rate of new connection requests. The proposed solution consists to change the routing policy of a pair node if the connection request is blocked. This algorithm improves the blocking rate of new connection requests.
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