@proceedings {423, title = {Characterizing IoT Cloud Federation}, journal = {2016 30th International Conference on Advanced Information Networking and Applications Workshops (WAINA) - Workshop on Cloud Computing Project and Initiatives - CCPI{\textquoteright}16}, year = {2016}, publisher = {IEEE Computer Society}, address = {Le R{\'e}gent Congress Centre, Crans-Montana, Switzerland}, abstract = {

The advent of both Cloud computing and Internet of Things (IoT) is changing the way of conceiving information and communication systems. Generally, we talk about IoT Cloud to indicate a new type of distributed system consisting of a set of smart devices interconnected with a remote Cloud infrastructure, platform, or software through the Internet and able to provide IoT as a Service (IoTaaS).\ In this paper, we discuss the near future evolution of IoT Clouds towards federated ecosystems, where IoT providers cooperate to offer more flexible services.\ Moreover, we present a general three-layer IoT Cloud Federation architecture, highlighting new business opportunities and challenges.\ 

}, keywords = {cloud computing, containers, federation, IoT, virtualisation}, issn = {978-1-5090-2461-2/16}, doi = {10.1109/WAINA.2016.152}, url = {http://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=7471179}, author = {Antonio Celesti and Maria Fazio and Maurizio Giacobbe and Antonio Puliafito and Massimo Villari} } @proceedings {7092964, title = {How to Enhance Cloud Architectures to Enable Cross-Federation: Towards Interoperable Storage Providers}, journal = { IEEE International Conference on Cloud Engineering (IC2E), Tempe, AZ, USA}, year = {2015}, month = {March}, pages = {480-486}, publisher = {IEEE Computer Society}, address = {Washington D.C.}, keywords = {Big Data, Big Data storage, CLEVER, CLEVER message oriented middleware, cloud architectures, cloud computing, cloud storage market, cross-federation, Ecosystems, federated cloud ecosystem, federation, Hadoop, Hadoop distribute file system, HDFS, inter-domain communication management, interoperable storage providers, Message systems, middleware, MOM, Protocols, public domain software, Resource management, Servers, small-medium cloud storage providers, Storage, storage management, XML, XMPP}, doi = {10.1109/IC2E.2015.80}, url = {http://conferences.computer.org/IC2E/2015/index.htm}, author = {Maria Fazio and Antonio Celesti and Massimo Villari and Antonio Puliafito} } @proceedings {348, title = {A Sustainable Energy-Aware Resource Management Strategy for IoT Cloud Federation}, journal = {The first IEEE International Symposium on Systems Engineering (ISSE)}, volume = {IEEE First International Symposium on Systems Engineering 2015 Proceedings}, year = {2015}, month = {09/2015}, pages = {170-175}, publisher = {IEEE Computer Society}, address = {Roma, Italy}, abstract = {

The advent of both Cloud computing and Internet of Things (IoT) is changing the way to conceive distributed systems. Nowadays, we can talk about IoT Cloud to indicate a new type of distributed system consisting of a set of smart IoT devices or sensors interconnected with a remote Cloud infrastructure, platform, or software. Energy sustainability in IoT Cloud providers offers new tempting business opportunities for organizations, but at the same time it raises new challenges. In this paper, a flexible IoT Cloud federation energy management strategy is presented for optimizing the allocation of geographically localized smart sensors. We define the concept of IoT Cloud Federation as a mesh of IoT Cloud providers that are interconnected to provide a universal decentralized sensing and actuating environment where everything is driven by constraints and agreements in a ubiquitous infrastructure.\ In particular, a dynamic algorithm able to improve energy sustainability in a federated IoT Cloud ecosystem is discussed. In addition, we analyze a use-case driven strategy that allows both IoT Cloud providers and brokers to determine the paths to reach possible destination IoT devices in which computational resources should be dynamically migrated in order to push down the energy consumption due to IoT distributed applications.

}, keywords = {cloud computing, Energy Efficiency, Energy Sustainability, federation, Green Computing, Internet of Things, Virtual Sensors}, issn = {978-1-4799-1919-2}, author = {Maurizio Giacobbe and Antonio Celesti and Maria Fazio and Massimo Villari and Antonio Puliafito} } @article {351, title = {Towards the Integration Between IoT and Cloud Computing: An Approach for the Secure Self-Configuration of Embedded Devices}, journal = {International Journal of Distributed Sensor Networks}, volume = {2015}, year = {2015}, month = {2016}, pages = {1-9}, abstract = {

The secure boot up and setup of Internet of Things\ (IoT) devices connected over the Cloud represents a challenging open issue. This paper deals with the automatic configuration\ of IoT devices in a secure way through the Cloud, in order\ to provide new added-value services. After a discussion on the\ limits of current IoT and Cloud solutions in terms of secure selfconfiguration,\ we present a Cloud-based architecture that allows\ IoT devices to interact with several federated Cloud providers.\ In particular, we present two possible scenarios, i.e., single Cloud\ and a federated Cloud environments interacting with IoT devices\ and we address specific issues of both. Moreover, we present\ several design highlights on how to operate considering real open\ hardware and software products already available in the market.

}, keywords = {cloud computing, federation, IoT, security, self-configuration}, doi = {http://dx.doi.org/10.1155/2015/286860}, url = {http://www.hindawi.com/journals/ijdsn/2015/286860/}, author = {Antonio Puliafito and Antonio Celesti and Massimo Villari and Maria Fazio} } @proceedings {39, title = {The Need of a Hybrid Storage Approach for IoT in PaaS Cloud Federation}, journal = {Proceedings of the 28th International Conference on Advanced Information Networking and Applications Workshops}, year = {2014}, month = {May}, pages = {779{\textendash}784}, publisher = {IEEE COMPUTER SOC}, address = {Washington, DC}, abstract = {

Monitoring activities over many different types of sensors are very challenging to support advanced services for Internet of Things (IoT) and its future. However, one of the major issues is the explosion of the amount of heterogeneous information that has to be stored and processed, thus causing the well known Big Data problem. Some Cloud strategies have been investigated to offer IoT-oriented services, but they do not specifically address solutions for Big Data management. In this paper, we present a two-layer architecture based on a hybrid storage system able to support a Platform as a Service (PaaS) federated Cloud scenario. The proposed architecture combines the benefits of both storage approaches. In particular, it allows us on one hand to extend SQL-like legacy systems, and on the other hand to manage Big Data through an XML-like, non-SQL distributed storage system according to a Cloud federation approach.

}, keywords = {Big Data, cloud computing, federation, IoT, monitoring, PaaS, sensor network}, doi = {10.1109/WAINA.2014.162}, author = {M. Fazio and A. Celesti and M. Villari and A. Puliafito} } @proceedings {34, title = {Resource Management in Cloud Federation Using XMPP}, journal = {IEEE 13th International Symposium on Network Computing and Applications (NCA), 2014}, year = {2014}, month = {Aug}, pages = {67{\textendash}70}, publisher = {IEEE Computer Society}, address = {Washington DC}, abstract = {

This paper deals with Cloud federation issues, where Clouds are both providers and clients of virtual resource at the same time. Specifically, we have designed a solution based on a XMPP communication platform, which allows to set up federated environments and to easily manage virtual shared resources. Heterogeneous and dynamic Clouds can interact in near-real time, making available their own resources according to specific agreement policies. We are thinking to implement the proposed solution using the Hadoop framework, a well-known Cloud Map-Reduce middleware designed to offer different types of services. Here, we analyze the basic and useful elements necessary to making up federated clouds. By mean of Cloud federation, two or more Hadoop clusters can be connected in order to increase service scalability, overcoming some technical limitations of the Hadoop framework itself.

}, keywords = {cloud computing, Cloud services, federation, Hadoop, XMPP}, doi = {10.1109/NCA.2014.15}, author = {M. Fazio and A. Celesti and M. Villari and A. Puliafito} } @booklet {46, title = {Design of a Message-Oriented Middleware for Cooperating Clouds}, journal = {Advances in Service-Oriented and Cloud Computing}, volume = {393}, year = {2013}, month = {13}, pages = {25{\textendash}36}, publisher = {Springer Berlin Heidelberg}, address = {Berlin}, abstract = {Nowadays, Cloud services are not always able to promptly deal with the new emerging customers{\textquoteright} requirements. A possible solution to such a problem consists in developing a piece of middleware able to combine available services in order to address different scenarios. In this paper, we present a Message Oriented Middleware for Cloud (MOM4C) able to arrange customizable Cloud facilities by means of a flexible federation-enabled communication system. From the customer{\textquoteright}s the point of view, Cloud facilities are composed as well as a planetary system model, in which the central star is the communication system and planets are utilities (e.g., storage, computation, security, sensing, data analytics, etc). More specifically, we describe the key features of the proposed architecture and its applicability in different scenarios.}, keywords = {cloud computing, federation, message oriented middleware, planetary system model, service provisioning}, doi = {10.1007/978-3-642-45364-9_3}, url = {http://dx.doi.org/10.1007/978-3-642-45364-9_3}, author = {M. Fazio and A. Celesti and M. Villari}, editor = {Canal, Carlos, Villari, Massimo} } @article {51, title = {A Diversified Set Of Security Features For Xmpp Communication Systems Useful In Cloud Computing Federation}, journal = {INTERNATIONAL JOURNAL ON ADVANCES IN SECURITY}, volume = {6}, year = {2013}, pages = {99{\textendash}110}, abstract = {

Nowadays, in the panorama of Cloud Computing, finding a right compromise between interactivity and security is not trivial at all. Currently, most of Cloud providers base their communication systems on the web service technology. The problem is that both Cloud architectures and services have started as simple but they are becoming increasingly complex. Consequently, web services are often inappropriate. Recently, many operators in both academia and industry are evaluating the eXtensible Messaging and Presence Protocol for the implementation of Cloud communication systems. In fact, the XMPP offers many advantages in term of real-time capabilities, efficient data distribution, service discovery, and inter-domain communication compared to web service technologies. Nevertheless, the protocol lacks of native security features. In this paper, we explore such security issues, discussing how they can be mitigated using both SAML/SASL Single Sign-On (SSO) and XEP 0027.

}, keywords = {authentication, cloud computing, data encryption, digital signature, federation, security, sso, XMPP}, url = {http://www.iariajournals.org/security/tocv6n34.html}, author = {A. Celesti and M. Villari and A. Puliafito} } @article {42, title = {A Message Oriented Middleware for Cloud Computing To Improve Efficiency in Risk Management Systems}, journal = {SCALABLE COMPUTING. PRACTICE AND EXPERIENCE}, volume = {14}, year = {2013}, pages = {201{\textendash}213}, abstract = {

Transportation of Dangerous Goods represents a sensitive problem due its congenital high potential risk of causing disaster if an accident occurs. Transportation of Dangerous Goods Risk Management systems reduce the possibility of both accidental disasters and terrorist attacks detecting unusual events and blocking possible threats. Cloud computing can facilitate the development of such kinds of systems thanks to new emerging paradigms and technologies. In this paper, we discuss the design of a new Message-Oriented Cloud Middleware for Cloud, that can be used to develop a Cloud-based Transportation of Dangerous Goods Risk Management system. More specifically, we investigate issues on transportation of Dangerous Goods, in order to focus the attention on the requirements of the Risk Management system. Then, we describe how to use the Message-Oriented Cloud Middleware for Cloud architecture and the necessary utilities in particular here for supporting Transportation of Dangerous Goods.

}, keywords = {cloud computing, federation, message oriented middleware, planetary system model, service provisioning}, doi = {10.12694/scpe.v14i4.928}, url = {http://www.scpe.org/index.php/scpe/article/view/928/0}, author = {Maria Fazio and Antonio Celesti and Antonio Puliafito and Massimo Villari} } @proceedings {6618763, title = {Remote and deep attestations to mitigate threats in Cloud Mash-Up services}, journal = {World Congress on Computer and Information Technology (WCCIT)}, year = {2013}, month = {June}, pages = {1-6}, publisher = {IEEE Computer Society}, address = {Sousse}, abstract = {

Cloud computing is an emerging technology able to offer a plethora of new advanced services. Cloud operators can use and combine such services in order to build new Mash-up Cloud platform and applications. However, security issues have strongly limited the large-scale adoption of Cloud computing, especially in business environments and similar application scenarios, where sensitive date need to be protected. At the same time the Trusted Computing technology is bringing a new way of thinking about security of systems. This paper deals with the importance to leverage the Trusted Computing for encouraging the development of secure distributed Mash-up Cloud services. We show how the Remote and Deep Attestation protocols make secure both the physical hosts and the virtual machines in a Cloud infrastructure, providing a solid framework for the deployment of federated environments.

}, keywords = {cloud computing, Deep Attestation, federation, PaaS, Trusted Computing, Virtual Machine}, issn = {978-1-4799-0460-0}, doi = {10.1109/WCCIT.2013.6618763}, author = {Celesti, A. and Fazio, M. and Villari, M. and Puliafito, A. and Mulfari, D.} } @article {60, title = {Virtual Machine Provisioning Through Satellite Communications In Federated Cloud Environments}, journal = {Future Generation Computer Systems}, volume = {28}, year = {2012}, month = {01/2012}, pages = {85{\textendash}93}, abstract = {

Cloud federation offers plenty of new services and business opportunities. However, many advanced services cannot be implemented in the real Cloud market due to several issues that have not been overcome yet. One of these concerns is the transfer of huge amount of data among federated Clouds. This paper aims to overcome such a limitation proposing an approach based on satellite communications. By comparing performance in data delivery on the Internet and satellite systems, it is evident that satellite technologies are enough ripe to be competitive against systems with a wired infrastructure. Thus, we propose to make use of satellite transmission to implement fast delivery of huge amount of data. Through the discussion of a use case, where a WEB TV company offers a streaming service, we show how to practically apply the proposed strategy in a real scenario, specifying the involvement of Cloud providers, Cloud users, satellite companies and end-user clients.

}, keywords = {cloud computing, Distributed Cloud service, federation, Satellite communications, Service delivery}, doi = {10.1016/j.future.2011.05.021}, url = {http://www.sciencedirect.com/science/article/pii/S0167739X11001038}, author = {A. Celesti and M. Fazio and M. Villari and A. Puliafito} }