In this paper, we propose a novel algorithm to restore calls upon double-link failures in all-optical networks. Our proposal aims to restore all the lightpaths disrupted by each failure. The algorithm performs a path restoration looking for the route that presents the higher optical signal-to-noise ratio (OSNR). We compared our proposal to three other well known approaches in the literature. We observed that our proposal obtained lower failure rates in the restoration process for three different studied scenarios considering several physical layer impairments.
In this paper we propose a novel algorithm to restore calls upon node failure in all-optical networks. Our proposal aims to restore the maximum of lightpaths disrupted by each node failure. The algorithm performs a path restoration looking for the route that presents the higher optical signal-tonoise ratio (OSNR). We compared our proposal to three other well known approaches in the literature. We observed that our proposal obtained lower failure rates in the restoration process for three different studied scenarios considering several physical layer impairments.
Neste artigo é apresentado os resultados parciais do desenvolvimento de um jogo que utiliza robótica para estimular o pensamento computacional entre crianças dos 3 aos 5 anos do ensino fundamental. O intuito do jogo é estimular o pensamento computacional nessa faixa etária, fazendo com que as crianças desenvolvam essa habilidade que é fundamental para as atuais e futuras gerações. Para realizar as missões do jogo, os jogadores necessitam pré-definir os movimentos (programa) que o robô precisa realizar para alcançar o objetivo solicitado. Na sua fase inicial, o jogo foi desenvolvido em Scratch e será, posteriormente, desenvolvido no ambiente de prototipação Arduino.
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