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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, Modulation and Spectrum Assignment using an AI based Algorithm
2019 11th International Conference on Communication Systems & Networks (COMSNETS), 2019There is a need of the networks which can accommodate the requirements of high data rate with low blocking probability. Optical networks are used most commonly as the backbone. They support high data rates, but need to be provisioned with low blocking probability. Due to the use of traditional Wavelength Division Multiplexing (WDM), optical network are
Varsha Lohani +2 more
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Improved Routing and Spectrum Assignment formulations for optical OFDM networks
2016 8th International Symposium on Telecommunications (IST), 2016Efficient resource allocation in OFDM-based optical networks is directly affected by definition and formulations of Routing and Spectrum Assignment (RSA) problem. In this paper, we propose new Binary Linear Programming (BLP) formulations for the RSA problem that provide more efficient resource allocation in comparison with previous formulations. Unlike
Mohammad Hadi, Mohammad Reza Pakravan
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2017 IEEE International Conference on Signal Processing, Informatics, Communication and Energy Systems (SPICES), 2017
Elastic optical network paradigm supports the fast growth of Internet traffic due to its highly flexible spectrum assignment and bandwidth-variable optical paths. Orthogonal frequency division multiplexing (OFDM) based elastic optical networks supports sub-wavelength and super-wavelength services directly in optical level and also accommodate different
Panchali Datta Choudhury +2 more
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Elastic optical network paradigm supports the fast growth of Internet traffic due to its highly flexible spectrum assignment and bandwidth-variable optical paths. Orthogonal frequency division multiplexing (OFDM) based elastic optical networks supports sub-wavelength and super-wavelength services directly in optical level and also accommodate different
Panchali Datta Choudhury +2 more
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Fragmentation-aware survivable Routing and Spectrum Assignment in elastic optical networks
2014 6th International Workshop on Reliable Networks Design and Modeling (RNDM), 2014Transparent elastic optical networks (EON) allow provisioning connections with different bandwidth requirements in an efficient way. To achieve the high spectrum efficiency under dynamic traffic scenario, fragmentation-aware Routing, Modulation and Spectrum Assignment (RMSA) decisions is essential. Since fiber cuts are common, resiliency against single-
Christian Thiessen, Cicek Cavdar
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Dynamic Routing and Spectrum Assignment for Multi-fiber Elastic Optical Networks
Advanced Photonics 2018 (BGPP, IPR, NP, NOMA, Sensors, Networks, SPPCom, SOF), 2018We consider dynamic Routing and Spectrum Assignment problem in elastic optical networks with multiple fibers per link. The proposed path selection and spectrum management scheme is demonstrated to improve spectrum efficiency.
Jingxin Wu +2 more
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Manycast routing, modulation level and spectrum assignment over elastic optical networks
Optical Fiber Technology, 2017Abstract Manycast is a point to multi-point transmission framework that requires a subset of destination nodes successfully reached. It is particularly applicable for dealing with large amounts of data simultaneously in bandwidth-hungry, dynamic and cloud-based applications.
Xiao Luo +8 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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Oncologic emergencies and urgencies: A comprehensive review
Ca-A Cancer Journal for Clinicians, 2022Bonnie Gould Rothberg +2 more
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Latency-Aware Routing and Spectrum Assignment with Deep Reinforcement Learning
2022 18th International Conference on the Design of Reliable Communication Networks (DRCN), 2022Hernandez-Chulde, Carlos +4 more
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