Implementación de un banco de pruebas para redes inalámbricas ad hoc empleando plataformas Raspberry Pi y Node.js

This paper presents the design and implementation of an experimental testbed for the evaluation of ad hoc wireless networks, using the IEEE 802.11 standard. Specifically, we implemented a set of 10 ad hoc nodes using low cost hardware platforms (Raspberry Pi) with embedded Linux. Also, an application based on Node.js was developed for the control of the experiments. In particular, we defined a set of messages using the socket.io library for the remote activation of process on the platforms as well as in order to generate requests about the traffic metrics and the status of a test. Additionally, the current sensor INA219 was installed in each node for the analysis of the energy consumption demanded by the wireless cards. Finally, we present some results of experiments performed to describe the effect of the data rate configured on the wireless card in relation with the energy expenditure and the effective throughput in a multi-hop scenario.