Contribution to Proving Absolute QoS in OBS Networks

This Final Master Project introduces a new strategy to provide QoS in IP/OBS networks, using routing with prioritization based on statistics, named RPBS. A new method is provided and subsequently validated. This proposal uses the feedback scheme in optical networks to provide statistical knowledge w...

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Bibliographic Details
Author: Escolar Díaz, Mariana
Format: master thesis
Publication Date:2009
Country:España
Institution:Universitat Politècnica de Catalunya (UPC)
Repository:UPCommons. Portal del coneixement obert de la UPC
Language:English
OAI Identifier:oai:upcommons.upc.edu:2099.1/6793
Online Access:https://hdl.handle.net/2099.1/6793
Access Level:Open access
Keyword:TCP/IP (Computer network protocol)
Computer networks
OBS
Statistical Routing
QoS Provision
WDM
TCP/IP (Protocol de xarxes d'ordinadors)
Ordinadors, Xarxes d'
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telemàtica i xarxes d'ordinadors
Description
Summary:This Final Master Project introduces a new strategy to provide QoS in IP/OBS networks, using routing with prioritization based on statistics, named RPBS. A new method is provided and subsequently validated. This proposal uses the feedback scheme in optical networks to provide statistical knowledge with the objective of finding a suitable route to reach each destination from a specific source node, with more chance of success. This yields a twofold outcome. First, the losses can be reduced in a big number due to statistics. Second, the delays are also reduced compared with other methods based on feedback scheme. These two improvements allow better QoS provision, supporting class differentiation and more efficient resources utilization. The benefits of this proposal are quantified and further compared against existent alternatives by simulations.