Supporting streaming updates in an active data warehouse

N Polyzotis, S Skiadopoulos… - 2007 IEEE 23rd …, 2006 - ieeexplore.ieee.org
Active data warehousing has emerged as an alternative to conventional warehousing
practices in order to meet the high demand of applications for up-to-date information. In a …

Routing and spectrum assignment: A metaheuristic for hybrid ordering selection in elastic optical networks

HA Dinarte, BVA Correia, DAR Chaves… - Computer Networks, 2021 - Elsevier
Routing and spectrum assignment (RSA) problem, in elastic optical networks, searches for a
route and a sufficient spectrum range to fit each network request. Solving these two …

Achievement of fair and efficient regenerator allocations in translucent optical networks using the novel regenerator assignment algorithm

A Fontinele, I Santos, G Durães, A Soares - Optical Switching and …, 2016 - Elsevier
In this work, the Preventive Assignment of Regenerator (PAR) algorithm is proposed for
regenerator allocation in translucent optical networks. The objective of this proposal is to …

Load balancing in fixed-routing optical networks with weighted ordering heuristics

LH Bonani, JCF Queiroz, MLF Abbade… - Journal of Optical …, 2019 - opg.optica.org
In this paper we show that the adoption of a simple weighted ordering heuristic strategy to
find fixed shortest path routes in a topology can improve load-balancing and, consequently …

Channel-based RSA approaches for QoS protection of slices over elastic optical networks

KDR Assis, RCDA Almeida, AF Dos Santos… - IEEE …, 2022 - ieeexplore.ieee.org
Resource efficiency and survivability are critical concerns in elastic optical networks (EONs)
with virtualization. In this paper, we investigate some important aspects in network …

On solving the capacitated routing and spectrum allocation problem for flexgrid optical networks

CM Araújo, JMP Silva, A Subramanian, IE Fonseca - Computer Networks, 2020 - Elsevier
The elastic optical networks, aka, flexgrid networks, have flexible spectrum allocation. Such
flexibility is possible due to the division of the spectrum into narrow frequency slots and the …

Routing in EON networks under mixed static and dynamic traffic

KDR Assis, AF dos Santos… - Optical Metro Networks …, 2017 - spiedigitallibrary.org
This paper proposes heuristics, which can maximize the number of remaining available
routes and minimize the number of transceivers used in Elastic Optical Networks (EON). The …

Impairment-aware fixed-alternate bsr routing heuristics applied to elastic optical networks

MM Alves, RC Almeida, AF dos Santos… - The Journal of …, 2021 - Springer
The introduction of elastic optical networks (EONs) leads to new challenges, such as the
problem of routing, modulation level, and spectrum assignment. In the literature, the best …

A branch-and-cut algorithm for the routing and spectrum allocation problem

M Bianchetti, J Marenco - Discrete Applied Mathematics, 2023 - Elsevier
One of the most promising solutions to deal with huge data traffic demands in large
communication networks is given by flexible optical networking, in particular the flexible grid …

Hybrid strategy for routing, modulation and spectrum assignment in elastic optical networks

KDR Assis, AF Santos, RC Almeida… - Optical and Quantum …, 2021 - Springer
In this paper, we propose a novel hybrid strategy that combines mixed integer linear
programming (MILP) formulation with different alternative routing approaches that is capable …