Influence of topology on mobility and transmission capacity of human-based DTNs

Abstract

Casual encounters among people have been studied as a means to deliver messages indirectly, using delay tolerant networks (DTNs). This work analyses the message forwarding in human-based DTNs, focusing on the topology of the mobility area. By using simulations, we evaluate the influence of the environment connectivity on the network performance. Several parameters have also been considered: network density, forwarding algorithm and storage capacity. In general, considering the already limited capacity of mobile devices and a reduced network density, the mobility environment interconnectivity seems to have a relevant effect in message delivery rates. © 2012 Springer-Verlag.