Esquemas de proteção e conversão de comprimento de onda em redes opticas WDM / Protection schemes and wavelength conversion in WDM optical networks

AUTOR(ES)
DATA DE PUBLICAÇÃO

2005

RESUMO

This work examines the blocking reduction with the use of wavelength converters and some protection schemes in optical networks. Sub-Graph Routing Protection, a protection method that creates different failure-dependent protection paths for each connection is presented. Some schemes were proposed and compared, aiming at eliminating unnecessary connection reallocations on a failure occurrence, without compromising the acceptance of new connections. Another topic studied for this work is the conversion gain, when wavelength converters are used in mesh topology networks under dynamic traffic. A limited number of total converters were used in the simulations. The sufficient amount of converters for a satisfactory blocking probability was analyzed, for minimizing investments in a network upgrade. For a better problem formulation understanding the optical network and its elements were explained. The routing and wavelength allocation algorithms proposed in the literature are also detailed

ASSUNTO(S)

redes de computação sistemas de telecomunicação optical networks telecommunication systems comunicações oticas computer networks

ACESSO AO ARTIGO

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