Diseño de un Concentrador para Aplicaciones de Redes de Sensores con Capacidades de Reconfiguración de Parámetros por Software
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Resumen
The design of a gateway that incorporates some concepts of software defined radio (SDR) in wireless sensor networks with Xbee modules is presented in this work. At first, a state of the art about wireless sensor network and their associated problems was carried out in order to find opportunities to implement SDR functionalities to solve the requirements within the environment of a wireless sensor networks. Also, the analysis of development tool is presented, in addition a USRP B210 with GNU Radio is used. Furthermore, a detailed analysis of Xbee layer protocol is presented, including frames fields and hardware capabilities. According with this analysis, transmission and reception functional blocks are developed in GNU Radio. In order to verify the functionality, each one is tested and output values can be monitored. Finally, experimental tests are carried out using a graphic user interface with capabilities of modifying parameters dynamically. Finally, LQI and PER measurements are performed.