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  • JMDH_JNCA_150720

    Rights statement: This is the author’s version of a work that was accepted for publication in Journal of Network and Computer Applications. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Network and Computer Applications, 169, 2020 DOI: 10.1016/j.jnca.2020.102784

    Accepted author manuscript, 726 KB, PDF document

    Embargo ends: 1/08/22

    Available under license: CC BY-NC-ND

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Fog computing systems: State of the art, research issues and future trends, with a focus on resilience

Research output: Contribution to journalJournal article

Published
Article number102784
<mark>Journal publication date</mark>1/11/2020
<mark>Journal</mark>Journal of Network and Computer Applications
Volume169
Number of pages20
Publication StatusPublished
Early online date1/08/20
<mark>Original language</mark>English

Abstract

Many future innovative computing services will use Fog Computing Systems (FCS), integrated with Internet of Things (IoT) resources. These new services, built on the convergence of several distinct technologies, need to fulfil time-sensitive functions, provide variable levels of integration with their environment, and incorporate data storage, computation, communications, sensing, and control. There are, however, significant problems to be solved before such systems can be considered fit for purpose. The high heterogeneity, complexity, and dynamics of these resource-constrained systems bring new challenges to their robust and reliable operation, which implies the need for integral resilience management strategies. This paper surveys the state of the art in the relevant fields, and discusses the research issues and future trends that are emerging. We envisage future applications that have very stringent requirements, notably high-precision latency and synchronization between a large set of flows, where FCSs are key to supporting them. Thus, we hope to provide new insights into the design and management of resilient FCSs that are formed by IoT devices, edge computer servers and wireless sensor networks; these systems can be modelled using Game Theory, and flexibly programmed with the latest software and virtualization platforms.