Avaliação de desempenho de redes tolerantes a atrasos e desconexões utilizando a técnica de virtualização

Abstract

New protocols and network technologies must be substantiated in performance evaluations so it behavior and e_ciency should be very_ed and proven. In Delay Tolerant Netorks - DTN there is a lack of tools where these performance evaluations can be developed. Such lack makes researchers often being using small scale real networks or one of the few DTN simulators available. This work presents a diferentiated approach on conducing performance evaluations in DNT that is based on a recent movement of the scienti_c community towards the usage of hybrid enviroments, based on the bene_ts and on the growth of virtualization techonologies. We propose and implemente an enviroment for performance evaluation of DTN, based on virtualization and completely implemented in software, that takes into account the node's mobility and the replication of the sthocastic characteristics of wireless networks between them. As results we obtain a correct reprodution of contats that were observed in a real netwok, the identi_cation of new ones from thre data traces used and the error estmation between the two testbeds.