We are working on several problems related to Edge Computing/Networking, designing novel architectures, proposing algorithms to optimize their performance, and building working prototypes.
Mobile Data Caching
We propose new caching architectures and caching business models, and design algorithms for increasing the user-perceived performance and reducing content delivery expenditures; special emphasis is given on Video streaming and AR/VR services.
Internet of Things
We study new IoT architectures and services, focusing on energy efficiency and QoS criteria such as performance and delay. We develop working prototypes and use the Pervasive Nation testbed to evaluate our algorithms.
Sharing Economy &
We study real-world sharing economy solutions, analyze data using ML and network science tools, build mathematical models to optimize the benefits of cooperative networks, and test them in diverse use cases.
We work on a diverse set of problems related to 5G, from next-generation RAN systems and multiRAT architectures, to network economics and game-theoretic analyses.
SoftEdge: Architectures and Algorithms for Software Defined Edge Systems
Project 17/CDA/4760, Career Development Award, 2018-2021; Single-PI project.
Sponsored by Science Foundation Ireland
Partners: Yale University; IBM T. J. Watson Research Center(NY); NEC Research Labs (Heidelberg); CONNECT (Dublin)
Today we are witnessing the impressive transformation of the wireless networks. The demand has dramatically shifted from plain voice to throughput-hungry and low-latency communication and computing services, and new types of users have emerged. In order to address these challenges the emerging 5G+ systems include several innovations, two of the most promising being: (i) leverage the SDN/NFV technologies and create fully-programmable wireless systems, and (ii) push services closer to demand by harnessing resources at the network edge. SoftEdge lies at the nexus of these game-changing ideas and aspires to unleash their potential by addressing key bottleneck issues. Namely, it will propose a new class of multi-tier softwarized edge systems; introduce a rigorous methodology for designing their architecture and control fabric; and deliver novel resource orchestration policies for supporting demanding services such as mobile data analytics. Moreover, this project will study the economics of edge systems and design virtualization and pricing mechanisms that will maximize their efficiency and performance. SoftEdge has been carefully designed to maximize impact: it brings together world-renowned academics and industry labs; includes both theoretical and experimental tasks; evaluates representative use cases and demos; has identified paths to commercialization; and has a set of innovative education and outreach activities
SERHENA: Service-Aware Resource Orchestration in Hybrid Cloud/Edge Architectures
A very promising solution for addressing the increasing network congestion problem is edge-networking: the deployment and smart management of network, computing and storage resources at the network edge. This approach can substantially improve the services offered to users, and reduce the required network expenditures. To this end, SERHENA will deliver a multi-faceted optimization framework aiming to unleash the full potential of edge networking by addressing certain bottleneck issues.
SERHENA incorporates many innovations, as it will: optimize the resource dimensioning in hybrid EN systems that include both central and edge resources; jointly orchestrate different types of resources (e.g., computing and bandwidth) so as to satisfy the emerging types of services; study methods to leverage idle user-owned equipment; propose online resource management policies that achieve asymptotic cooperation equilibriums; focus on service-aware network optimization techniques; and analyze the market dynamics among the service providers and operators in this new era so as to create sustainable solutions. SERHENA will follow a novel methodology, using both rigorous analytical tools, and data-driven or testbed-based evaluation approaches.
Video Delivery Optimization for Next Generation Wireless Networks
Targeted Industry Project, Co-sponsored by SFI/CONNECT and Nokia Ireland, 2017-2020.
In this project we design, implement and evaluate algorithms for revolutionizing the next generation mobile video delivery services, using an innovative mix of novel architectures and optimization algorithms.