Browsing by Author "Jain, Anuj"

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    A new era for cities with fog computing
    (2017) Jain, Anuj
    In this article, the authors dissect the technical challenges that cities face when implementing smart city plans and outlines the design principles and lessons learned after they carried out a flagship initiative on fog computing in Barcelona. In particular, they analyze what they call the Quadruple Silo (QS) problem -- that is, four categories of silos that cities confront after deploying commercially available solutions. Those silo categories are: physical (hardware) silos, data silos, and service management silos, and the implications of the three silos in administrative silos. The authors show how their converged cloud/fog paradigm not only helps solve the QS problem, but also meets the requirements of a growing number of decentralized services -- an area in which traditional cloud models fall short. The article exposes cases in which fog computing is a must, and shows that the reasons for deploying fog are centered much more on operational requirements than on performance issues related to the cloud.
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    The unavoidable convergence of NFV, 5G, and fog: a model-driven approach to bridge cloud and edge
    (2017) Rodríguez, Juan Pedro
    The interplay between cloud and fog computing is crucial for the evolution of IoT, but the reach and specification of such interplay is an open problem. Meanwhile, the advances made in managing hyper-distributed infrastructures involving the cloud and the network edge are leading to the convergence of NFV and 5G, supported mainly by ETSI's MANO architecture. This article argues that fog computing will become part of that convergence, and introduces an open and converged architecture based on MANO that offers uniform management of IoT services spanning the continuum from the cloud to the edge. More specifically, we created the first YANG models for fog nodes, for IoT services involving cloud, network, and/or fog, and expanded the concept of "orchestrated assurance" to provision carrier-grade service assurance in IoT. The article also discusses the application of our model in a flagship pilot in the city of Barcelona.