RT journal article
T1 A SIR-based model for contact-based messaging applications supported by permanent infrastructure
A1 Conejero, J.A.
A1 Hernández-Orallo, Enrique
A1 Murillo Arcila, Marina
A1 Manzoni, Pietro
A2 Matemáticas
K1 SIR models
K1 PDEs in connection with computer science
K1 mobile networking in proximity
K1 contact-based messaging
K1 dynamical systems
K1 epidemic diffusion
AB In this paper we focus on the study of coupled systems of ordinary differential equations (ODE's) describing the diffusion of messages between mobile devices.Communications in mobile opportunistic networks take place upon the establishment of ephemeral contacts among mobile nodes using direct communication. SIR (Sane, Infected, Recovered) models permit to represent the diffusion of messages using an epidemiological based approach.The question we analyse in this work is whether the coexistence of a fixed infrastructure can improve the  diffusion of messages and thus justify the additional costs. We analyse this case from the point of view of dynamical systems, finding and characterising the admissible equilibrium of this scenario. We show that a centralised diffusion is not efficient when people density reaches a sufficient value.This result supports the interest in developing opportunistic networks for occasionally crowded places to avoid the cost of additional infrastructure.
PB AIMS
SN 1937-1179
YR 2019
FD 2019
LK http://hdl.handle.net/10498/35391
UL http://hdl.handle.net/10498/35391
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 11-nov-2026