Publication: Implementación de un protocolo de encaminamiento geográfico en una red de sensores inalámbricos
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2012-02
Defense date
2012-02-23
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Abstract
En este proyecto fin de carrera se desarrolla una pila de protocolos basada en encaminamiento geográfico para una red de sensores inalámbricos IEEE 802.15.4. Las redes de sensores inalámbricos están limitadas en recursos y consumo de energía. Para mitigar estos inconvenientes, debe optimizarse el envío de mensajes entre los distintos nodos que forman la red. Para ello, se utilizan protocolos de encaminamiento geográfico específicos. El objetivo de este proyecto es implementar un protocolo de encaminamiento geográfico, Greedy Forwarding, que optimice el envío de mensajes entre los nodos, disminuyendo la utilización de recursos de memoria y ancho de banda y el consumo de energía. El encaminamiento geográfico se realiza a nivel de red. Para el nivel de aplicación, se ha implementado una aplicación de ejemplo para evaluar el correcto funcionamiento del encaminamiento geográfico de forma sencilla. Se utilizan las capas física y de enlace definidas en el estándar IEEE 802.15.4, que permiten la comunicación entre los dispositivos de una red inalámbrica. Por último, se ha desplegado una red de sensores inalámbricos real para comprobar el correcto funcionamiento del protocolo de encaminamiento geográfico implementado. ___________________________________________________________________________________________________________________________
In this final project a protocol stack based on geographic routing is developed for an IEEE 802.15.4 wireless sensor network. Wireless sensor networks are limited in resources and power consumption. To mitigate these drawbacks, messages sending between different nodes in the network must be optimized. In order to do this, specific geographic routing protocols are used. The aim of this project is to implement a geographic routing protocol, Greedy Forwarding, to optimize messages sending between nodes, reducing use of memory and bandwidth resources and power consumption. Geographic routing is done at network layer. For application layer, an example application has been implemented to evaluate the correct operation of the geographic routing easily. Physical and link layers defined in the IEEE 802.15.4 standard are used to allow communication between the wireless network devices. Finally, a real wireless sensor network has been deployed to check the correct operation of the implemented geographic routing protocol.
In this final project a protocol stack based on geographic routing is developed for an IEEE 802.15.4 wireless sensor network. Wireless sensor networks are limited in resources and power consumption. To mitigate these drawbacks, messages sending between different nodes in the network must be optimized. In order to do this, specific geographic routing protocols are used. The aim of this project is to implement a geographic routing protocol, Greedy Forwarding, to optimize messages sending between nodes, reducing use of memory and bandwidth resources and power consumption. Geographic routing is done at network layer. For application layer, an example application has been implemented to evaluate the correct operation of the geographic routing easily. Physical and link layers defined in the IEEE 802.15.4 standard are used to allow communication between the wireless network devices. Finally, a real wireless sensor network has been deployed to check the correct operation of the implemented geographic routing protocol.
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Keywords
Redes de sensores inalámbricas, Protocolos de comunicación, Radiocomunicación