Data Storage and Sharing for Mobile Devices in Multi-region Edge Networks

The edge computing paradigm has been recently introduced with the aim of bringing cloud services closer to endusers. It provides an intermediate layer between devices and the actual cloud infrastructure, resulting in faster response times. In this paper, we propose a framework that leverages stationary nodes within the edge infrastructure to provide a persistent publish/subscribe system to a set of mobile devices, distributed across multiple network regions. We combine device-to-device and device-to-edge interactions with the goal of optimizing access to relevant data and allowing such data to be available to all users, hence creating a persistent, local-area data storage and dissemination network. Our experimental results show adequate response times for interactive usage and low energy consumption. We also evaluate our system against a cloud solution and verify that our proposal yields considerable latency speedups.