5 papers
Birkhoff's Decomposition Revisited: Sparse Scheduling for High-Speed Circuit Switches
Víctor Valls, George Iosifidis, Leandros Tassiulas
Data centers are increasingly using high-speed circuit switches to cope with the growing demand and reduce operational costs. One of the fundamental tasks of circuit switches is to…
Measurement-driven Analysis of an Edge-Assisted Object Recognition System
A. Galanopoulos, V. Valls, G. Iosifidis +1
We develop an edge-assisted object recognition system with the aim of studying the system-level trade-offs between end-to-end latency and object recognition accuracy. We focus on d…
Online Convex Optimization with Perturbed Constraints
Víctor Valls, George Iosifidis, Douglas J. Leith +1
This paper addresses Online Convex Optimization (OCO) problems where the constraints have additive perturbations that (i) vary over time and (ii) are not known at the time to make…
Maximum Lifetime Analytics in IoT Networks
Victor Valls, George Iosifidis, Theodoros Salonidis
This paper studies the problem of allocating bandwidth and computation resources to data analytics tasks in Internet of Things (IoT) networks. IoT nodes are powered by batteries, c…
ORLA/OLAA: Orthogonal Coexistence of LAA and WiFi in Unlicensed Spectrum
Andres Garcia-Saavedra, Paul Patras, Victor Valls +2
Future mobile networks will exploit unlicensed spectrum to boost capacity and meet growing user demands cost-effectively. The 3GPP has recently defined a Licensed-Assisted Access (…