Migration strategies toward all optical metropolitan access rings
Entity
UAM. Departamento de Ingeniería InformáticaPublisher
Institute of Electrical and Electronics Engineers; Optical Society of AmericaDate
2007-08Citation
10.1109/JLT.2007.901325
Journal of Lightwave Technology 25.8 (2007): 1918 - 1930
ISSN
0733-8724 (print); 1558-2213 (online)DOI
10.1109/JLT.2007.901325Funded by
The authors would like to thank the e-Photon/ONe+ network of excellenceEditor's Version
http://dx.doi.org/10.1109/JLT.2007.901325Subjects
Metropolitan area networks; Optical burst switching; Optical circuit switching; Optical networks; Performance evaluation; Informática; TelecomunicacionesNote
This paper was published in Journal of Lightwave Technology and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the IEEE website: http://dx.doi.org/10.1109/JLT.2007.901325. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.Rights
© 2007 Optical Society of America and IEEEAbstract
Nowadays, network operators are steadily deploying optical circuit switching (OCS) equipment in their metropolitan networks in order to cope with traffic increase and, most importantly, in order to reduce capital expenditures and operational expenditures of existing active technologies. On the other hand, optical burst switching (OBS) technology is expected to become mature in the medium term, and it may be used as an alternative to current OCS networks due to its potential advantages in terms of bandwidth allocation granularity. While OBS is being extensively studied in the literature, little attention has been paid in conducting a comparative analysis of OBS versus OCS, especially concerning cost analysis. In this paper, we provide a comparative analysis of OBS versus OCS as an evolutionary technology for all-optical rings in the metropolitan-access network. This paper is specifically targeted toward optimizing the number of optoelectronic receivers and wavelengths with real traffic matrices from the metropolitan rings in Madrid, Spain. Such matrices also include traffic projections of foreseeable broadband services, which are based on a market analysis from the largest operator in Spain. Our findings show that OCS might be more efficient than OBS in the metro-access segment, which is characterized by a highly centralized traffic pattern. However, the more distributed the traffic is, the more efficient the OBS is as well. Consequently, OBS might be better suited to metro-core networks, which show a more distributed and dynamic traffic pattern.
Files in this item
Google Scholar:Finochietto, Jorge M.
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Aracil, Javier
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Ferreiro, Ángel
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Fernández-Palacios, Juan
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González de Dios, Óscar
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