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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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ACTA PHOTONICA SINICA, 2013
In order to address the spectrum fragmentation problem in flexible grid optical networks,the spectrum fusion oriented routing and spectrum allocation algorithm and spectrum defragmentation algorithm are proposed.The notions of spectrum allocation window,spectrum allocation point and spectrum fusion window are introduced to optimize the network resource
鞠卫国 JU Weiguo +6 more
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In order to address the spectrum fragmentation problem in flexible grid optical networks,the spectrum fusion oriented routing and spectrum allocation algorithm and spectrum defragmentation algorithm are proposed.The notions of spectrum allocation window,spectrum allocation point and spectrum fusion window are introduced to optimize the network resource
鞠卫国 JU Weiguo +6 more
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ACO-based routing and spectrum allocation in flexible bandwidth networks
Photonic Network Communications, 2013Optical networks with flexible bandwidth provisioning are a very promising networking architecture. It enables efficient resource utilization and supports heterogeneous bandwidth demands. In this paper, we focus on the dynamic routing and spectrum allocation (RSA) problem which emerges in such networks and propose a novel dynamic RSA algorithm by means
Ying Wang 0056 +4 more
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Joint Routing and Scheduling in WMNs with Variable-Width Spectrum Allocation
IEEE Transactions on Mobile Computing, 2013This paper addresses, in the context of wireless network design, the problem of optimally partitioning the spectrum into a set of nonoverlapping channels with nonuniform spectrum widths. While narrower bands split the total available spectrum into more nonoverlapping channels allowing more parallel concurrent transmissions, wider spectrum bands yield ...
Mohammad Faisal Uddin, Chadi Assi
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Modeling the routing and spectrum allocation problem for flexgrid optical networks
Photonic Network Communications, 2012Flexgrid optical networks are attracting huge interest due to their higher spectrum efficiency and flexibility in comparison with traditional wavelength switched optical networks based on the wavelength division multiplexing technology. To properly analyze, design, plan, and operate flexible and elastic networks, efficient methods are required for the ...
Velasco Esteban, Luis Domingo +3 more
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Offline routing and spectrum allocation algorithms for elastic optical networks
Optical Switching and Networking, 2016Elastic optical networks (EONs) have emerged as a promising solution for future high speed networks because of their ability to efficiently manage network resources and provide better spectrum utilization to cope with the recent rapid change in traffic behavior and the tremendous growth in bandwidth demand.
Rana W. Alaskar +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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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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YBS heuristic for routing and spectrum allocation in flexible optical networks
2017 IEEE 18th International Conference on High Performance Switching and Routing (HPSR), 2017Spectrum-sliced elastic optical path networks (SLICE) enable flexible bandwidth provisioning, which allows efficient resource utilization and support to heterogeneous bandwidth demands. This makes SLICE a very promising networking architecture. In SLICE, finding a route and a slice of the spectrum is an important design problem, which is known as the ...
Alex Ferreira dos Santos +3 more
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2015 IEEE International Symposium on Signal Processing and Information Technology (ISSPIT), 2015
The recently proposed spectrum sliced elastic optical path network (SLICE) is expected to substantially increase network resource utilization efficiency. In order to meet this high expectation it is necessary to provide an efficient solution to the NP-complete routing, modulation and spectrum assignment (RMSA) problem.
Gang Feng +2 more
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The recently proposed spectrum sliced elastic optical path network (SLICE) is expected to substantially increase network resource utilization efficiency. In order to meet this high expectation it is necessary to provide an efficient solution to the NP-complete routing, modulation and spectrum assignment (RMSA) problem.
Gang Feng +2 more
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