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Routing and Spectrum Assignment in Elastic Optical Networks through a Hybrid Approach based on K-Shortest Paths and Q-Learning

Latin American Conference on Computational Intelligence, 2023
Reinforcement learning techniques have been successfully applied to the routing and spectrum assignment problem in elastic optical networks. These techniques offer a promising approach by enabling agents to make sequential decisions based on network ...
Ivan I. Ríos-Villalba   +3 more
semanticscholar   +1 more source

Split spectrum-enabled route and spectrum assignment in elastic optical networks

Optical Switching and Networking, 2014
The Split Spectrum Approach (SSA) in elastic optical networks is based on splitting a demand into smaller sub-signals when a blocking situation arises, either due to the lack of spectral resources or transmission reach reasons. In this paper, we propose a mechanism based on a Mixed Integer Linear Programming (MILP) formulation for efficiently serving ...
Pagès Cruz, Albert   +3 more
openaire   +3 more sources

Dynamic Routing and Spectrum Assignment in Spectrum-Flexible Transparent Optical Networks

Journal of Optical Communications and Networking, 2012
The continual growth of Internet traffic necessitates a high-capacity transmission platform and also highlights the importance of a multi-granularity transport network due to the flexible bitrates of Internet traffic. To meet these challenges, a spectrum-flexible optical network based on orthogonal frequency-division multiplexing (OFDM) transmission ...
Xin Wan, Nan Hua, Xiaoping Zheng
openaire   +1 more source

QoT-aware tree selection, routing, modulation, and spectrum assignment for filterless EONs over the C + L-band

Journal of Optical Communications and Networking, 2023
Filterless optical networks (FONs) as an economical solution use passive couplers/splitters rather than expensive active filter devices. In this way, after intermediate and destination nodes, lightpaths are dropped and continued, which generates leakage ...
M. S. Ghasrizadeh   +2 more
semanticscholar   +1 more source

SNR Re-Verification-Based Routing, Band, Modulation, and Spectrum Assignment in Hybrid C-C+L Optical Networks

Journal of Lightwave Technology, 2022
Band division multiplexing technology is a promising medium-term transitional solution to deal with the traffic flood, by leveraging the existing optical fiber transmission infrastructure.
Q. Yao   +10 more
semanticscholar   +1 more source

Routing and Spectrum Assignment Algorithm based on Spectrum Fragment Assessment of Arriving Services

2019 28th Wireless and Optical Communications Conference (WOCC), 2019
Elastic Optical Network (EON) is the promising solution for future optical networks. Spectrum fragments is one of the key issues in EON which will affect the allocation of subsequent services and the utilization of spectrum resource. This paper proposes an improved RSA algorithm for elastic optical network based on spectrum fragment assessment of ...
Bokai Cheng   +6 more
openaire   +1 more source

Heuristic Reward Design for Deep Reinforcement Learning-Based Routing, Modulation and Spectrum Assignment of Elastic Optical Networks

IEEE Communications Letters, 2022
In this letter, we study the deep reinforcement learning (DRL)-based routing, modulation and spectrum assignment problem in the elastic optical networks.
Bixia Tang   +3 more
semanticscholar   +1 more source

The Role of Topological Features in Routing and Spectrum Assignment Prioritization: A Decision Tree Analysis for Elastic Optical Networks

SBMO/MTT-S International Microwave and Optoelectronics Conference
The hybrid routing and spectrum assignment (HRSA) algorithm is the state-of-the-art approach for the RSA problem in elastic optical networks (EONs). Nonetheless, the topological features influencing its decision-making are not fully understood.
Renan V. B. Carvalho   +4 more
semanticscholar   +1 more source

A Routing and Spectrum Assignment Algorithm for Electric Power Elastic Optical Networks Based on Deep Reinforcement Learning

2023 2nd Asia Power and Electrical Technology Conference (APET), 2023
In order to improve the spectrum utilization of electric power elastic optical networks and reduce the training time of routing and spectrum allocation processes, the paper proposes a deep reinforcement learning based electric power elastic optical ...
Yuan-Chun Tang   +3 more
semanticscholar   +1 more source

Routing, Spectrum and Core Assignment on SDM Optical Networks (Invited)

Optical Fiber Communication Conference, 2016
Simple and flexible RSCA methods in SDM networks are proposed. They introduce Prioritized Area concept, and two kinds of crosstalk-awareness; Strict Constraint and Best-Effort approaches, and extend/compensate their performance by MIMO based approach.
Hideki Tode, Yusuke Hirota
openaire   +2 more sources

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