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A study of the routing and spectrum allocation in spectrum-sliced Elastic Optical Path networks
2011 Proceedings IEEE INFOCOM, 2011In OFDM-based optical networks, multiple subcarriers can be allocated to accommodate various size of traffic demands. By using the multi-carrier modulation technique, subcarriers for the same node-pair can be overlapping in the spectrum domain. Compared to the traditional wavelength routed networks (WRNs), the OFDM-based Spectrum-sliced Elastic Optical
Yang Wang 0016, Xiaojun Cao, Yi Pan 0001
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Robust plans for spectrum allocation in elastic flexgrid optical networks
2016 8th International Workshop on Resilient Networks Design and Modeling (RNDM), 2016We study the spectrum allocation problem in flexgrid optical networks under demand uncertainty. Using elastic spectrum allocation the slots assigned to a lightpath can be changed under different restrictions without service disruption. We study five different technologies to manage these changes. It is shown that the two least efficient models are less
Christina Büsing +2 more
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Performance evaluation of spectrum allocation policies for elastic optical networks
2015 17th International Conference on Transparent Optical Networks (ICTON), 2015This paper analyses the performances of major conventional spectrum allocation policies in elastic optical networks, in terms of time complexity, blocking probability and contiguous aligned available slot ratio. Simulation results show that the first-last fit allocation policy outperforms in terms of blocking probability and contiguous aligned ...
Bijoy Chand Chatterjee, Eiji Oki
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Large L-shape Fit Spectrum Allocation for Elastic Optical Network with Spectrum Slicing
2021 International Conference on Information Networking (ICOIN), 2021A slicing and stitching technology has been invented to relax the consecutive constraint of spectrum slot allocation in elastic optical network (EON). This technology splits a spectrum band into several signal bands, called optical components, by making a copy of the original spectrum band and filtering out an unwanted signal on each spectrum band. The
Kaito Akaki +2 more
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Relative cost routing and spectrum allocation in elastic optical networks
Journal of Optical Communications and Networking, 2020Elastic optical networks (EONs) are being used to adapt to the recent rapid changes in traffic behavior and the exponential growth in bandwidth demand. Routing and spectrum allocation (RSA) is one of the most important determining factors of the design, performance, and operation of EONs.
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Delayed Spectrum Allocation for Advance Reservation in Elastic Optical Networks
2016 International Conference on Optical Network Design and Modeling (ONDM), 2016In response to bandwidth-hungry applications, the field of Elastic Optical Networks (EON) has emerged. In this paper we investigate the provisioning and allocation problem in EONs, which presents a number of new and exciting challenges not otherwise present in optical networking solutions.
Pegah Afsharlar +4 more
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Genetic Algorithm for Routing and Spectrum Allocation in Elastic Optical Networks
2016 Third European Network Intelligence Conference (ENIC), 2016Elastic Optical Network (EON) architecture has been proposed as a promising technology for a new generation of OFDM networks. It is based on the concept that spectrum can be split into smaller slices than are used currently in the fixed-grid network. It allows better spectral utilization and support for bit rates over 100 Gb/s.
Piotr Lechowicz, Krzysztof Walkowiak
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Dynamic spectrum allocation based on connection alignment for elastic optical networks
2015 10th Asia-Pacific Symposium on Information and Telecommunication Technologies (APSITT), 2015To deal with exponential traffic growth, Elastic Optical Networks (EONs) are necessary because they enable to provide large capacity transmissions. In EONs, multiple widths of spectra are assigned to optical paths. Therefore, fragmentation in frequency domain degrades network performance.
Yusuke Hirota +3 more
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Spectrum allocation policy modeling for elastic optical networks
High Capacity Optical Networks and Emerging/Enabling Technologies, 2012Today, optical transmission technologies are able to support 400Gbps over a single optical channel. However, this capacity cannot fit in the current fixed frequency grid optical spectrum. On the other hand, high rate optical channels have to co-exist with different ranges of line rates in order to serve heterogeneous bandwidth requests from variety of ...
Adriana Rosa +4 more
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Basic-fit spectrum allocation for Elastic Optical Networks
2019 Workshop on Recent Advances in Photonics (WRAP), 2019Now-a-days huge growth in network applications in the field of mobile technology, cloud computing, data center network and social networks has led to requirements for high speed networks. To fulfill such wide range of requirements one of the promising solution is optical networks. WDM is one such technology whose bandwidth can be enhanced up to 100Gbps
C. L Triveni +3 more
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