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Sensors 2018, 18(2), 329;

Service Migration from Cloud to Multi-tier Fog Nodes for Multimedia Dissemination with QoE Support

Computer Science Faculty, Federal University of Pará, Belém 66075-110, Brazil
Institute of Informatics, Federal University of Rio Grande do Sul, Porto Alegre 91501-970, Brazil
Polytechnic School, University of Vale do Rio dos Sinos, São Leopoldo 93022-750, Brazil
Federal University of Health Sciences of Porto Alegre, Porto Alegre 90050-170, Brazil
Computer Science Department, University of California Los Angeles, Los Angeles, CA 90095-1596, USA
Current address: Rua Augusto Corrêa 01, Belém 66075-110, Brazil.
These authors contributed equally to this work.
Author to whom correspondence should be addressed.
Received: 28 November 2017 / Revised: 15 January 2018 / Accepted: 19 January 2018 / Published: 24 January 2018
(This article belongs to the Special Issue New Paradigms in Data Sensing and Processing for Edge Computing)
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A wide range of multimedia services is expected to be offered for mobile users via various wireless access networks. Even the integration of Cloud Computing in such networks does not support an adequate Quality of Experience (QoE) in areas with high demands for multimedia contents. Fog computing has been conceptualized to facilitate the deployment of new services that cloud computing cannot provide, particularly those demanding QoE guarantees. These services are provided using fog nodes located at the network edge, which is capable of virtualizing their functions/applications. Service migration from the cloud to fog nodes can be actuated by request patterns and the timing issues. To the best of our knowledge, existing works on fog computing focus on architecture and fog node deployment issues. In this article, we describe the operational impacts and benefits associated with service migration from the cloud to multi-tier fog computing for video distribution with QoE support. Besides that, we perform the evaluation of such service migration of video services. Finally, we present potential research challenges and trends. View Full-Text
Keywords: fog computing; QoE; service migration fog computing; QoE; service migration

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Rosário, D.; Schimuneck, M.; Camargo, J.; Nobre, J.; Both, C.; Rochol, J.; Gerla, M. Service Migration from Cloud to Multi-tier Fog Nodes for Multimedia Dissemination with QoE Support. Sensors 2018, 18, 329.

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