Rafael R. Freitas's research while affiliated with Federal University of Santa Catarina and other places

... There are several limitations faced the researchers such as the research limits in analyzing the cloud computing in networking and the data collection for the research and practical programming may not be accurate. The motivation behind the research of Ramgovind et al. [6], is to give a general security point of view of cloud processing with ex- pect to highlight the security worries that ought to be appropriately tended to and figured out how to understand the maximum capacity of cloud registering. As indicated by Okuhara et al. [7]; Moving computing into the "Cloud" makes PC preparing considerably more helpful for clients additionally give them new security issues about wellbeing and unwavering quality. ...

... These organizational structures, proposed in [11], allow network managers to understand the interactions between the Cloud elements, how their behavior is influenced in the organization, the impact of actions on macro and micro structures, as the macro level processes allowing and restricting activities at the micro level. This way, it provides computational models to classify, predict, and understand the elements interactions and their influence on the whole environment. ...

... This paper extends our previous work [1] proposing two strategies for allocation and provisioning of physical machines (PMs) and virtual machines (VMs) using DVFS as an improvement of private Clouds sustainability, transforming the Cloud into Green Cloud [2]. Green Clouds crave for efficiency of its components, so, we adopted positive characteristics of multiple existing strategies [3], developing hybrid strategies that, in our scope, aim to address: ...

... Furthermore, evidence in literature suggests that CloudSim is capable of instantiating 100,000 machines in less than 5 min [11]. It further enables studying on allocating policies and migrations of virtual machines (VMs) rendering its very useful in the research field for many researchers [19][20][21]. CloudSim's architecture consists of specific entities that are represented as Java classes, and as such, developers can simulate their experiments by inheriting these classes or directly by changing the available methods or parameters easily. ...

... lost at the first node). An example of a weak mobility system is Code-on Demand (CoD) and Remote Execution Evaluation (REE) [8,9]. On the other hand strong mobility, which our research builds on, is the ability of a computational environment to mobile the code and execution state (the context of execution) to start again at a new resource. ...

... Vale ressaltar que nenhum estudo aborda RNF e sustentabilidade ao mesmo tempo. Apenas dois artigos respondem três questões de pesquisa, são eles: EP_17 [42] e EP_26 [32]. Pode-se considerar que estes dois artigos são os mais completos em termos de questões que consegue responder e que eles apresentam alto relacionamento com o foco desta pesquisa, no entanto, diferentemente de ambos, este artigo aborda RNF e sustentabilidade. ...