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Intelligent scheduling and resource allocation for urban air mobility networks based on graph neural networks. [PDF]
Sci RepXu X, Zhao Y, Zhang P.
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Solving the routing and spectrum assignment problem, driven by combinatorial properties
Networks, 2023 AbstractThe routing and spectrum assignment problem in modern optical networks is an NP‐hard problem that has received increasing attention during the last years. The majority of existing integer linear programming models for the problem uses edge‐path formulations where variables are associated with all possible routing paths so that the number of ...
da Silva, Pedro Henrique Fernandes +3 more
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On the Routing and Spectrum Assignment with Multiple Objectives
Advanced Photonics for Communications, 2014 We study the routing and spectrum assignment problem with simultaneous minimizing of spectrum link and congestion level. We demonstrate that integrated objective approach could achieve better solutions than traditional ones based on single objective.
Dao Thanh, Hai +2 more
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On Routing and Spectrum Assignment in Rings
Journal of Lightwave Technology, 2015We present a theoretical study of the routing and spectrum assignment (RSA) problem in ring networks. We first show that the RSA problem with fixed-alternate routing in general-topology (mesh) networks (and, hence, in rings as well) is a special case of a multiprocessor scheduling problem.
Giorgio Lucarelli +2 more
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Routing and Spectrum Assignment in Spectrum Sliced Elastic Optical Path Network
IEEE Communications Letters, 2011A spectrum-sliced elastic optical path network (SLICE) architecture has been recently proposed as an efficient solution for a flexible bandwidth allocation in optical networks. In SLICE, the problem of Routing and Spectrum Assignment (RSA) emerges.
Miroslaw Klinkowski +1 more
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A Universal Spectrum Symmetry-Free Algorithm for Routing and Spectrum Assignment (RSA)
ICC 2024 - IEEE International Conference on CommunicationsWe present the first spectrum symmetry-free model for the routing and spectrum assignment (RSA) problem. This model allows for the design of more efficient algorithms as it eliminates from consideration an exponential number of equivalent symmetric ...
George N. Rouskas, Mithil Ghinaiya
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Journal of Lightwave Technology
Deep reinforcement learning (DRL) has been applied to the routing, modulation, and spectrum assignment (RMSA) in elastic optical networks (EON), enabling the learning of RMSA policies through interaction between a DRL agent and the EON environment ...
Ahmad Asiri, Bin Wang
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Deep reinforcement learning (DRL) has been applied to the routing, modulation, and spectrum assignment (RMSA) in elastic optical networks (EON), enabling the learning of RMSA policies through interaction between a DRL agent and the EON environment ...
Ahmad Asiri, Bin Wang
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Routing, Code, and Spectrum Assignment (RCSA) in Elastic Optical Networks
Optical Fiber Communication Conference, 2015 Elastic optical networks (EONs) are an attractive solution for backbones due to the offered potential flexibility and spectral efficiency. In EONs, an optical connection is allocated by solving the problem of routing and spectrum assignment (RSA). Based on the RSA output, a portion of spectrum—whose width depends on transmission parameters (e.g., bit ...
SAMBO, Nicola +6 more
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Cognitive Radio Routing and Optimal Spectrum Assignment Algorithm
Advanced Materials Research, 2011 Aiming to the shortcoming of traditional route protocols in cognitive radio networks, cognitive radio routing and optimal spectrum assignment (CRRSA) algorithm was proposed. In this paper, we consider the situation that non-interfering among the adjacent jump, and present the optimal allocation of available spectrum, and then calculate the bandwidth of
Zhan Jun Liu +2 more
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Routing and Spectrum Assignment in Elastic Filterless Optical Networks
IEEE/ACM Transactions on Networking, 2016 Elastic optical networking is considered a promising candidate to improve the spectral efficiency of optical networks. One of the most important planning challenges of elastic optical networks is the NP-hard routing and spectrum assignment (RSA) problem.
Émile Archambault +9 more
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