WDM network re-optimization avoiding costly traffic disruptions
(2013) In Telecommunication Systems 52(2). p.907-918- Abstract
- Network re-optimization is a process that must be triggered periodically in order to improve the inefficient resource allocation of online routing heuristics due to the uncertainty of online lightpath demand arrivals and departures. Network re-optimization involves two tasks: a) finding new lightpaths for a (sub)set of current demands, i.e. rerouting, and b) migrating the current traffic to the new configuration diminishing traffic disruptions, i.e. lightpath reconfiguration. If not controlled, excessive traffic disruptions may be a cause of violations of clients’ Service Level Agreement, which should be compensated by the network operator with penalization fees.
So far, rerouting and reconfiguration tasks of a re-optimization... (More) - Network re-optimization is a process that must be triggered periodically in order to improve the inefficient resource allocation of online routing heuristics due to the uncertainty of online lightpath demand arrivals and departures. Network re-optimization involves two tasks: a) finding new lightpaths for a (sub)set of current demands, i.e. rerouting, and b) migrating the current traffic to the new configuration diminishing traffic disruptions, i.e. lightpath reconfiguration. If not controlled, excessive traffic disruptions may be a cause of violations of clients’ Service Level Agreement, which should be compensated by the network operator with penalization fees.
So far, rerouting and reconfiguration tasks of a re-optimization process have been done separately, hence, efforts in trying to achieve the best network performance (rerouting) yields to solutions incurring on unacceptable traffic disruptions (reconfiguration) and vice-versa. In this paper, given a time-disruption threshold for reconfiguring every demand, we present a novel methodology consisting on two procedures that collaboratively find the best network performance without incurring on penalization fees.
Our numerical results are extremely encouraging: in our scenarios, it is always possible to achieve an optimal routing performance without incurring on penalization fees. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/2437960
- author
- Solano, Fernando and Pioro, Michal LU
- organization
- publishing date
- 2013
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Telecommunication Systems
- volume
- 52
- issue
- 2
- pages
- 907 - 918
- publisher
- Springer
- external identifiers
-
- wos:000320781900046
- scopus:84879605554
- ISSN
- 1018-4864
- DOI
- 10.1007/s11235-011-9584-3
- language
- English
- LU publication?
- yes
- id
- 96c62e09-4fc8-449f-8ccb-6a74622046cc (old id 2437960)
- date added to LUP
- 2016-04-01 10:21:41
- date last changed
- 2022-01-25 22:29:56
@article{96c62e09-4fc8-449f-8ccb-6a74622046cc,
abstract = {{Network re-optimization is a process that must be triggered periodically in order to improve the inefficient resource allocation of online routing heuristics due to the uncertainty of online lightpath demand arrivals and departures. Network re-optimization involves two tasks: a) finding new lightpaths for a (sub)set of current demands, i.e. rerouting, and b) migrating the current traffic to the new configuration diminishing traffic disruptions, i.e. lightpath reconfiguration. If not controlled, excessive traffic disruptions may be a cause of violations of clients’ Service Level Agreement, which should be compensated by the network operator with penalization fees.<br/><br>
So far, rerouting and reconfiguration tasks of a re-optimization process have been done separately, hence, efforts in trying to achieve the best network performance (rerouting) yields to solutions incurring on unacceptable traffic disruptions (reconfiguration) and vice-versa. In this paper, given a time-disruption threshold for reconfiguring every demand, we present a novel methodology consisting on two procedures that collaboratively find the best network performance without incurring on penalization fees.<br/><br>
Our numerical results are extremely encouraging: in our scenarios, it is always possible to achieve an optimal routing performance without incurring on penalization fees.}},
author = {{Solano, Fernando and Pioro, Michal}},
issn = {{1018-4864}},
language = {{eng}},
number = {{2}},
pages = {{907--918}},
publisher = {{Springer}},
series = {{Telecommunication Systems}},
title = {{WDM network re-optimization avoiding costly traffic disruptions}},
url = {{http://dx.doi.org/10.1007/s11235-011-9584-3}},
doi = {{10.1007/s11235-011-9584-3}},
volume = {{52}},
year = {{2013}},
}