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Efficient Modeling of the Routing and Spectrum Allocation Problem for Flexgrid Optical Networks
International Conference on Optical Network Design and Modelling, 2021While the problem of Routing and Spectrum Allocation (RSA) has been widely studied, very few studies attempt to solve realistic sized instances. Indeed, the state of the art is always below the standard transport capacity of a fiber link with 384 ...
B. Jaumard, Q. Nguyen
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Routing and Spectrum Allocation in OFDM-Based Optical Networks with Elastic Bandwidth Allocation
2010 IEEE Global Telecommunications Conference GLOBECOM 2010, 2010Orthogonal Frequency Division Multiplexing (OFDM) has been recently proposed as a modulation technique for optical networks, due to its good spectral efficiency and impairment tolerance. Optical OFDM is much more flexible compared to traditional WDM systems, enabling elastic bandwidth transmissions.
K. Christodoulopoulos +2 more
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International Conference on Computing Communication and Networking Technologies, 2020
Spectral fragmentation caused by frequent arrival and departure of random dynamic connections is a major area of concern, which may lead to block even some high prioritized dynamic connection requests in elastic optical network (EON).
Smita Paira +3 more
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Spectral fragmentation caused by frequent arrival and departure of random dynamic connections is a major area of concern, which may lead to block even some high prioritized dynamic connection requests in elastic optical network (EON).
Smita Paira +3 more
semanticscholar +1 more source
Analysis of on-line routing and spectrum allocation in spectrum-sliced optical networks
2013 IEEE International Conference on Communications (ICC), 2013The orthogonal frequency division multiplexing (OFDM) technology provides an opportunity for efficient resource utilization in optical networks. It allows allocation of multiple sub-carriers to meet traffic demands of varying size. Utilizing OFDM technology, a spectrum efficient and scalable optical transport network called SLICE was proposed recently.
Shahrzad Shirazipourazad +2 more
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Protection, Routing, Spectrum and Core Allocation in EONs-SDM for Efficient Spectrum Utilization
ICC 2019 - 2019 IEEE International Conference on Communications (ICC), 2019The use of protection in elastic optical networks (EONs) with spatial division multiplexing (SDM) can lead to under-utilization of the spectrum, since a high number of resources is reserved for protection. In this paper, we propose an algorithm that employs minimum interference routing, FIPP p-cycle, optical traffic grooming, and spectrum overlap to ...
Helder M. N. S. Oliveira +1 more
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Routing, Modulation, Spectrum and Core Allocation Based on Mapping Scheme
2020 IEEE Symposium on Computers and Communications (ISCC), 2020The growing popularity of heterogeneous applications on the Internet, added to new information and communication technologies, has driven the exhaustion of the physical limitations of the Internet backbone. To overcome these limitations, emerged the Space-Division Multiplexing Elastic optical networks is a promising solution to cope with the expected ...
Edson Rodrigues +3 more
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Dynamic Routing and Spectrum Allocation in Elastic Optical Networks with Minimal Disruption
National Conference on Communications, 2020Fragmentation is considered as a major bottleneck for Elastic Optical Networks (EON) resulting in poor spectrum utilization. A defragmentation scheme can be employed to tackle this fragmentation issue.
Sadananda Behera, G. Das
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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 +4 more
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Performance analysis of novel routing and spectrum allocation algorithm in elastic optical networks
, 2020With the rapid development of services such as mobile Internet, high-definition video, and cloud computing, users' bandwidth requirements are increasing, and the demand for bandwidth granularity is becoming more diverse.
Li Li, Hong-jie Li
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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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