Conecta2: An Android App for Communication between Disaster Survivors through an ad hoc Network

Abstract

Natural and man-made disasters often render network infrastructure inoperative, severely hampering communication between rescue workers and survivors. While smartphone-based ad hoc networks are frequently proposed as a solution, the implementation of mobile applications optimized for disaster scenarios remains a challenge. This study aims to address this gap by developing Conecta2, a prototype Android application for communication in post-disaster situations. The application establishes an ad hoc network using Wi-Fi Direct or Bluetooth in order to enable communication between nearby smartphones without relying on regular network infrastructure. Conecta2 allows users to transmit text, photos, and audio, as well as to estimate the location of nearby devices running the same software. Experimental tests were conducted to evaluate the performance of the application in simulated disaster scenarios. Results demonstrate that Conecta2 effectively facilitates communication between smartphones in situations analogous to disaster aftermath. The ability of the application to locate survivors via their smartphones also aids search and rescue efforts. In conclusion, Conecta2 offers a viable communication alternative for post-disaster scenarios, potentially improving the effectiveness of disaster response and survivor location efforts.