Deepfloat : resource-efficient dynamic management of vehicular floating content

Manzo, Gaetano (University of Applied Sciences and Arts Western Switzerland (HES-SO Valais-Wallis); University of Bern, Switzerland) ; Otálora, Sebastian (University of Applied Sciences and Arts Western Switzerland (HES-SO Valais-Wallis)) ; Marsan, Marco Ajmone (IMDEA Networks Institute, Spain & Politecnico di Torino, Italy) ; Braun, Torsten (University of Bern, Swizterland) ; Nguyen, Hung (University of Adelaide, Australia) ; Rizzo, Gianluca (University of Applied Sciences and Arts Western Switzerland (HES-SO Valais-Wallis))

Opportunistic communications are expected to play a crucial role in enabling context-aware vehicular services. A widely investigated opportunistic communication paradigm for storing a piece of content probabilistically in a geographical area is Floating Content (FC). A key issue in the practical deployment of FC is how to tune content replication and caching in a way which achieves a target performance (in terms of the mean fraction of users possessing the content in a given region of space) while minimizing the use of bandwidth and host memory. Fully distributed, distance-based approaches prove highly inefficient, and may not meet the performance target, while centralized, model-based approaches do not perform well in realistic, inhomogeneous settings. In this work, we present a data-driven centralized approach to resource-efficient, QoS-aware dynamic management of FC. We propose a Deep Learning strategy, which employs a Convolutional Neural Network (CNN) to capture the relationships between patterns of users mobility, of content diffusion and replication, and FC performance in terms of resource utilization and of content availability within a given area. Numerical evaluations show the effectiveness of our approach in deriving strategies which efficiently modulate the FC operation in space and effectively adapt to mobility pattern changes over time.

Conference Type:
full paper
Economie et Services
Institut Informatique de gestion
Budapest, Hungary, 27-29 August 2019
Budapest, Hungary
27-29 August 2019
9 p.
Published in:
Proceedings of the ITC 31- Networked Systems and Services 2019
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 Record created 2019-10-16, last modified 2020-10-27

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