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Routing and Spectrum Assignment in Spectrum Flexible Transparent Optical Networks
2014In this paper the heuristic algorithm for the selection lightpaths in flexible transparent optical networks has been presented. The considered problem of routing and spectrum assignment (RSA) takes into consideration minimizing the length of the transmission distance under spectrum continuity constraints and relationship between the traffic bitrates ...
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Routing and Spectrum Assignment Algorithm Maximizes Spectrum Utilization in Optical Networks
37th European Conference and Exposition on Optical Communications, 2011This paper proposes a routing and spectrum assignment algorithm for elastic optical networks. The algorithm achieves high utilization of spectrum resources by considering the consecutiveness of common available spectrum slots among relevant fibers.
Yoshiaki Sone +4 more
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International Conference on Optical Network Design and Modelling
Recently, several studies have aimed at utilizing multiband transmission technology to meet the increasing traffic growth rate primarily caused by the augmentation of the 5G and 6G services in telecom networks.
Anjali Sharma +2 more
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Recently, several studies have aimed at utilizing multiband transmission technology to meet the increasing traffic growth rate primarily caused by the augmentation of the 5G and 6G services in telecom networks.
Anjali Sharma +2 more
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Routing and Spectrum Assignment for Software-Defined Elastic Optical Networks
2019Software-defined Elastic Optical Networks (SD-EONs) combine software-defined network (SDN) with elastic optical networks (EONs) to further improve the spectrum utilization of routing and spectrum assignment (RSA) algorithms. However, some existing RSA algorithms usually only consider the hops when solving route subproblem, whereas the link spectrum ...
Ziwei Lin, Rongxi He, Tongtong Liu
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Multicast Routing and Spectrum Assignment in Elastic Optical Networks
Asia Communications and Photonics Conference, 2012Modulation-Enabled node model is introduced in Elastic Optical Networks (EON), which describes the capability of changing Modulation Level (ML) dynamically. A novel multicast RSA algorithm is proposed and validated. Simulation results show its good performance.
Ziyan Yu +5 more
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Journal of Optical Communications and Networking
As the demand for data transmission continues to grow, it is expected that the single-carrier bit rate will reach 1.4 Tb/s, necessitating a 14 Tb/s optical interface for efficient traffic transmissions.
Yu Zheng +5 more
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As the demand for data transmission continues to grow, it is expected that the single-carrier bit rate will reach 1.4 Tb/s, necessitating a 14 Tb/s optical interface for efficient traffic transmissions.
Yu Zheng +5 more
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2019 28th Wireless and Optical Communications Conference (WOCC), 2019
Routing and spectrum allocation (RSA) is one of the key problems in EONs since bandwidth fragmentation generated by establishing the connection dynamically. In this work, we propose a routing and spectrum allocation algorithm based on Maximum Spectrum Completeness (MSC) which selected the completely contiguous frequency of the light-path and avoiding ...
Jingwen Zhang +4 more
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Routing and spectrum allocation (RSA) is one of the key problems in EONs since bandwidth fragmentation generated by establishing the connection dynamically. In this work, we propose a routing and spectrum allocation algorithm based on Maximum Spectrum Completeness (MSC) which selected the completely contiguous frequency of the light-path and avoiding ...
Jingwen Zhang +4 more
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Journal of Optical Communications and Networking
Elastic optical networks (EONs) enable flexible resource allocation to address the rapid growth of bandwidth demand. However, dynamic resource allocation remains challenging due to time-varying traffic, spectrum continuity and contiguity constraints, and
Sajjad Zare +3 more
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Elastic optical networks (EONs) enable flexible resource allocation to address the rapid growth of bandwidth demand. However, dynamic resource allocation remains challenging due to time-varying traffic, spectrum continuity and contiguity constraints, and
Sajjad Zare +3 more
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Dynamic routing and spectrum assignment in elastic optical networks using graph signal correlation
Journal of Optical Communications and NetworkingElastic optical networks (EONs) have emerged as a flexible and spectrally efficient solution for future backbone infrastructures, where dynamic routing and spectrum assignment (RSA) is a key but complex resource allocation task.
M. H. Zarei +2 more
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Anycast Routing and Spectrum Assignment in Multilevel Filterless Optical Networks
International Conference on Communications, Circuits and SystemsThis letter studies anycast routing and spectrum assignment (RSA) in broadcast-aware multilevel filterless optical networks (FONs). Each logical level consists of a family of pre-established edge-disjoint trees, and each anycast demand must be assigned ...
D. Din
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