Marcelo Antonio Marotta

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Internet of Things devices being used now expose limitations that prevent their proper use in healthcare systems. Interoperability and security are especially impacted by such limitations. In this paper, we discuss today ́s issues, including benefits and difficulties, as well as approaches to circumvent the problems of employing and integrating Internet of(More)
Mobile Cloud Computing enables mobile devices to augment constrained resources such as processing, storage, and battery autonomy by using the cloud infrastructure. As the network is a key element in integrating mobile devices to the cloud, a proper management of the mobile cloud computing environment is necessary. Such a management must take into account(More)
Heterogeneous Cloud Radio Access Networks (HCRAN) incorporate Heterogeneous Networks (HetNet) and Cloud Radio Access Networks (C-RAN) concepts for next generation cellular networks. H-CRAN exploits the heterogeneity of macro and small cells from HetNet, enabling cellular networks to achieve a higher spectral efficiency. Meanwhile, concepts from CRAN(More)
Software defined radio enables the improvement of the radio-frequency spectrum utilization through the design of cognitive radio devices. The implementation of these devices must be based on spectrum sensing function searching for vacant channels and, opportunistically, transmit over these channels in a cognitive radio network. Therefore, the configuration,(More)
The management of smart objects (SObjs) is an important task because they are huge in number and applications. Such huge number of SObjs may lead the Internet of Things (IoT) to face severe network conditions, in terms of network congestion and large delays. Thus, the management of SObjs is fundamental to avoid future IoT network problems. In such a(More)
Cognitive radio make use of spectrum sensing techniques to detect licensed users transmissions and avoid causing interference. The major drawback in current spectrum sensing techniques is the use of static decision thresholds to detect such transmissions, which may be infeasible in public safety radio channels. More precisely, the cognitive radio may find(More)
Kitsune: A Management System for Advanced Radio Networks based on Cognitive Functions Considering the current underutilization of radio frequency spectrum for wireless communication, the Cognitive Radio is seen as a key concept to enable the improvement of the radio frequency spectrum utilization. The implementation of cognitive radio devices must be based(More)
Cognitive radio devices are able to sense the spectrum of frequencies and share access to vacant channels. These devices usually have a candidate channels list that must be sensed to find a vacant channel. In this paper, we propose a novel system called ChiMaS, which is able to manage the candidate channels list implementing three tasks: Analysis, Creation,(More)
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