Hybrid Policy of Routing and Spectrum Assignment in Elastic Optical Networks ()
ABSTRACT
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.
Share and Cite:
Adépo, J. , Anoh, G. and Vangah, J. (2023) Hybrid Policy of Routing and Spectrum Assignment in Elastic Optical Networks.
Open Journal of Applied Sciences,
13, 2387-2394. doi:
10.4236/ojapps.2023.1312186.
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