Solving large instances of the RSA problem in flexgrid elastic optical networks

M Klinkowski, M Żotkiewicz… - Journal of Optical …, 2016 - ieeexplore.ieee.org
We present an optimization procedure that mixes advanced large-scale optimization
methods and heuristics to solve large instances (with over 1.7 million integer variables) of …

Performance evaluation of spectrum allocation policies for elastic optical networks

BC Chatterjee, E Oki - 2015 17th international conference on …, 2015 - ieeexplore.ieee.org
This paper analyses the performances of major conventional spectrum allocation policies in
elastic optical networks, in terms of time complexity, blocking probability and contiguous …

Routing and spectrum assignment in elastic filterless optical networks

E Archambault, N Alloune, M Furdek… - IEEE/ACM …, 2016 - ieeexplore.ieee.org
Elastic optical networking is considered a promising candidate to improve the spectral
efficiency of optical networks. One of the most important planning challenges of elastic …

Distance-adaptive transmission in cloud-ready elastic optical networks

R Goścień, K Walkowiak, M Klinkowski - Journal of Optical …, 2014 - opg.optica.org
In this paper, we analyze distance-adaptive transmission in cloud-ready elastic optical
networks (EONs). To this end, we focus on the routing, modulation, and spectrum allocation …

Dynamic routing, spectrum, and modulation-format allocation in mixed-grid optical networks

T Ahmed, S Rahman, S Ferdousi… - Journal of Optical …, 2020 - opg.optica.org
Traffic in optical backbone networks is evolving rapidly in terms of type, volume, and
dynamicity following the rapid growth of cloud-based services, ongoing adoption of 5G …

Towards elastic and fine-granular bandwidth allocation in spectrum-sliced optical networks

Y Wang, X Cao, Q Hu, Y Pan - Journal of Optical Communications …, 2012 - opg.optica.org
To overcome the inefficiency of the rigid frequency allocation in traditional wavelength
division multiplexing (WDM) networks, the idea of slicing the optical spectrum for elastic and …

Fragmentation-aware routing and spectrum allocation scheme based on distribution of traffic bandwidth in elastic optical networks

X Chen, J Li, P Zhu, R Tang, Z Chen… - Journal of Optical …, 2015 - opg.optica.org
Empowered by multirate transmission and bandwidth-variable switching technology, elastic
optical networks (EONs) enhance spectrum utilization efficiency and increase network …

Dynamic resource allocation for immediate and advance reservation in space-division-multiplexing-based elastic optical networks

S Sugihara, Y Hirota, S Fujii, H Tode… - Journal of Optical …, 2017 - opg.optica.org
Numerous studies have investigated elastic optical networks (EONs) with the aim of
expanding the transmission capacities of core networks. To achieve this goal, it is necessary …

A spectrum assignment algorithm in elastic optical network with minimum sum of weighted resource reductions in all associated paths

J Yuan, R Zhu, Y Zhao, Q Zhang, X Li… - Journal of Lightwave …, 2019 - opg.optica.org
Elastic optical network (EON) is a promising technology for the next generation of optical
transport network. Routing, modulation and spectrum assignment is one of the key issues in …

Routing and spectrum allocation in spectrum-sliced elastic optical path networks

Y Wang, X Cao, Q Hu - 2011 IEEE International Conference on …, 2011 - ieeexplore.ieee.org
Recently, the OFDM-based Spectrum-sliced Elastic Optical Path (SLICE) network attracts
significant interests due to its elastic band-width allocation. The OFDM technology, on one …