Spectrum allocation policy modeling for elastic optical networks

A Rosa, C Cavdar, S Carvalho, J Costa… - High Capacity Optical …, 2012‏ - ieeexplore.ieee.org
Today, optical transmission technologies are able to support 400Gbps over a single optical
channel. However, this capacity cannot tit in the current fixed frequency grid optical …

Bandwidth defragmentation in dynamic elastic optical networks with minimum traffic disruptions

M Zhang, W Shi, L Gong, W Lu… - 2013 IEEE International …, 2013‏ - ieeexplore.ieee.org
Bandwidth defragmentation, ie, the operation to reconfigure existing connections for making
the spectrum usage less fragmented and less misaligned, has recently been recognized as …

Impact of wavelength and modulation conversion on translucent elastic optical networks using MILP

X Wang, M Brandt-Pearce… - Journal of Optical …, 2015‏ - opg.optica.org
Compared to legacy wavelength division multiplexing networks, elastic optical networks
(EONs) have added flexibility to network deployment and management. EONs can include …

Gridless optical networking field trial: flexible spectrum switching, defragmentation and transport of 10G/40G/100G/555G over 620-km field fiber

N Amaya, M Irfan, G Zervas, K Banias, M Garrich… - Optics express, 2011‏ - opg.optica.org
We present results from the first gridless networking field trial with flexible spectrum
switching nodes and 620 km of installed fibre links. Signals at 10G, 12.25 G, 42.7 G, DP …

Intra and inter datacenter networking: The role of optical packet switching and flexible bandwidth optical networking

SJB Yoo, Y Yin, K Wen - 2012 16th International Conference on …, 2012‏ - ieeexplore.ieee.org
This paper discusses prospects and challenges of optical networking designed to meet
exponentially growing demands of data traffic. We discuss both intra and inter data-center …

Analysis and demonstration of network utilization improvement through format-agnostic multi-channel wavelength converters

K Ishii, T Inoue, I Kim, X Wang, HN Tan… - Journal of Optical …, 2018‏ - opg.optica.org
The effectiveness of using all-optical wavelength converters (AO-WCs) to improve optical
network utilization is evaluated by performing both network simulations and experiments …

Comparison of node architectures for elastic optical networks with waveband conversion

Z **, L Juhao, G Bingli, H Yongqi… - China …, 2013‏ - ieeexplore.ieee.org
In Elastic Optical Networks (EONs) with flexible bandwidth allocation, the blocking
probability is high because of spectral contention. Similar to the functionality of wavelength …

Fragmentation aware routing and spectrum assignment algorithm for elastic optical networks

J Shen, J Chen, Y Sun - TENCON 2015-2015 IEEE Region 10 …, 2015‏ - ieeexplore.ieee.org
Routing and Spectrum Assignment is a key issue in Elastic Optical Networks (EON). Under
dynamic traffic conditions, spectrum fragmentation of the frequency resources reduces the …

Adaptive spectrum control and management in elastic optical networks

K Wen, X Cai, Y Yin, DJ Geisler… - IEEE Journal on …, 2012‏ - ieeexplore.ieee.org
Elastic optical networking (EON) has emerged in recent years as a promising solution for
implementing flexible bandwidth channels (flexpaths) that efficiently match the allocated …

Statistical analysis of blocking probability and fragmentation based on Markov modeling of elastic spectrum allocation on fiber link

ANF Rosa, P Wiatr, C Cavdar, SV Carvalho… - Optics …, 2015‏ - Elsevier
Abstract In Elastic Optical Network (EON), spectrum fragmentation refers to the existence of
non-aligned, small-sized blocks of free subcarrier slots in the optical spectrum. Several …