Results 241 to 250 of about 3,411 (314)

Branch-and-cut-and-price algorithm for the constrained-routing and spectrum assignment problem

Journal of Combinatorial Optimization
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ibrahima Diarrassouba, Youssouf Hadhbi, Ali Ridha Mahjoub   +2 more
openaire   +3 more sources

Reinforcement Learning applied to the Routing and Spectrum Assignment in Elastic Optical Networks

2022 IEEE Latin American Conference on Computational Intelligence (LA-CCI), 2022
Elastic Optical Networks (EON) has emerged as technology in optical networks whose architecture can respond to the growing need for elasticity in allocating optical network resources. EON imposes physical layer constraints on traffics.
Santiago Arce, Luis Ayala Albertini, Ivan Ríos, Diego P. Pinto-Roa, José Colbes, Marcos Villagra   +5 more
openaire   +3 more sources

Experimental evaluation of a latency-aware routing and spectrum assignment mechanism based on deep reinforcement learning

Journal of Optical Communications and Networking, 2023
The introduction of futuristic and challenging use cases of 5G and 6G communications will demand strict requirements in terms of high bandwidth and low latency.
Carlos Hernández-Chulde, R. Casellas, R. Martínez, R. Vilalta, R. Muñoz   +4 more
semanticscholar   +1 more source

Deep Reinforcement Learning-Based Routing and Spectrum Assignment of EONs by Exploiting GCN and RNN for Feature Extraction

Journal of Lightwave Technology, 2022
Deep reinforcement learning (DRL) has been introduced to the routing and spectrum assignment (RSA) of elastic optical networks (EONs) where the RSA policies are learnt during the interaction of a DRL agent with the EON environment.
Liufei Xu, Yue-Cai Huang, Yun Xue, Xiao-Hui Hu   +3 more
semanticscholar   +1 more source

Pre- and post-processing techniques for reinforcement-learning-based routing and spectrum assignment in elastic optical networks

Journal of Optical Communications and Networking, 2023
Research on the routing and spectrum assignment (RSA) problem has long been conducted with the aim of efficiently utilizing the frequency resources of optical networks.
Takafumi Tanaka, Masayuki Shimoda
semanticscholar   +1 more source

Routing and Wavelength (Spectrum) Assignment

2020
Routing a connection from its source to its destination is a fundamental component of network design. The choice of route affects numerous properties of a connection, most notably cost, latency, and availability, as well as the resulting level of congestion in the network.
Jane M. Simmons, George N. Rouskas
openaire   +1 more source

Fragmentation aware routing and spectrum assignment algorithm

2014 IEEE International Conference on Communications (ICC), 2014
In flex-grid (elastic) networks, the spectrum can be allocated at a much finer granularity than it can be allocated in WDM networks. However, the dynamic establishment and tear down of lightpaths yields to the fragmentation of the spectrum with consequent increase in blocking of requests for connection establishment.
Pedro M. Moura, Nelson L. S. da Fonseca, Rafael Augusto Scaraficci   +2 more
openaire   +1 more source

Routing and Spectrum Assignment Based on Reinforcement Learning in Multi-Band Optical Networks

Prague Stringology Conference, 2023
A routing and spectrum assignment strategy based on Reinforcement Learning (RL-RSA) is proposed for multi-band optical networks. RL-RSA accounts for Stimulated Raman Scattering using the Generalized Gaussian Noise model.
Abdennour Ben Terki, J. Pedro, A. Eira, A. Napoli, N. Sambo   +4 more
semanticscholar   +1 more source

Online routing and spectrum assignment in flexgrid optical networks

2015 17th International Conference on Transparent Optical Networks (ICTON), 2015
In this paper we propose a novel method for online routing and spectrum assignment (RSA) in flexgrid optical networks based on the theory of Markov Decision Processes (MDP). This theory has already been successfully applied to optimum state-dependent routing in multiservice circuit switched networks.
Ronald Romero Reyes, Thomas Bauschert
openaire   +1 more source

Algorithm for energy efficient routing, modulation and Spectrum Assignment

2015 IEEE International Conference on Communications (ICC), 2015
Information and Communication Technology activities consumed 4% of the world energy in 2009, and such consumption will continue to increase due to the traffic growth of the Internet predicted for the next years. Techniques to make the core of the network more energy efficient has been proposed, among them, green routing has been considered a promising ...
Pedro M. Moura, Rafael Augusto Scaraficci, Nelson Luis Saldanha da Fonseca   +2 more
openaire   +2 more sources