Publication: Configuración de equipos de comunicaciones embarcados en MAVs mediante SDN
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2018-10
Defense date
2018-10-15
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Abstract
Una de las tecnologías más desarrolladas en los últimos años es la relacionada
con los UAVs ( Unmanned Aerial Vehicles ), comúnmente conocidos como drones. Estos
dispositivos caracterizados principalmente por volar gracias a un control remoto tienen
numerosas utilidades en campos tanto militares como civiles. Las ventajas que suponen
los drones son cuantiosas. Reducen tiempo en la realización de diferentes operaciones y
el riego humano al tratarse dispositivos no tripulados. Pueden acceder a la mayoría de
espacios y ser manejados con facilidad.
Al mismo tiempo, SDN ( Software Defined Network ) es otra tecnología que al
igual que los UAVs ha experimentado un gran desarrollo recientemente. Las SDN están
caracterizadas principalmente porque el control de la red recae en una nueva figura no
existente en las redes convencionales: el controlador. Esto quiere decir que los
administradores de la red pueden configurarla y manejarla como deseen. La separación
de separación de este plano de control del plano de datos produce ventajas y supone un
aumento en la velocidad de innovación en las redes.
Este tipo de redes poseen varias características que las diferencian del resto de
redes móviles y dichas características deben tenerse en cuenta a la hora realizar una
correcta configuración. El uso de la tecnología SDN se presenta como un posible
recurso para establecer una comunicación eficiente en estas redes, pero supone un reto
de gran complejidad.
En este trabajo se realiza, principalmente, una exploración de esta tecnología.
Esta exploración puede ser dividida en diferentes fases. Primeramente, se realiza un
estudio de la tecnología SDN y del protocolo OpenFlow. Se procede también a la
elección de un controlador de licencia de código abierto. Es importante recordar que el
controlador es la figura principal de las redes SDN. Con la decisión ya tomada, se
realiza una exploración del mismo gracias a la herramienta de simulación Mininet.
Gracias a esta herramienta se pueden realizar pruebas sobre diferentes topologías y con
distintas configuraciones del controlador para identificar problemas y trabajar sobre
soluciones para dichos problemas.
Una vez se tiene una configuración del controlador que se ajusta a las
necesidades de este trabajo se realiza una exploración de plataformas SBC
( Single-board computer ) en el laboratorio, concretamente las plataformas son Raspberry
Pi. Estos dispositivos son unos ordenadores de muy bajo coste que consisten tan sólo en
una placa con un tamaño aproximado del palmo de una mano. Se realiza entonces una
configuración de los equipos usando el software OVS ( Open Virtual Switch ). Se trata
también de un software con licencia de código abierto. Se procede a ejecutar diferentes
pruebas sobre estos dispositivos. Las primeras se realizan sobre un escenario cableado y
finalmente se lleva a cabo una exploración de la interfaz inalámbrica de los dispositivos.
One of the most developed technologies in recent years is related to UAVs (Unmanned Aerial Vehicles), commonly known as drones. These devices, characterized mainly by flying thanks to a remote control, have numerous utilities in both military and civil fields. The advantages of drones are numerous. They reduce time in carrying out different operations and human irrigation as they are unmanned devices. They can access most spaces and be handled easily. At the same time, SDN (Software Defined Networking) is another technology that, like UAVs, has recently undergone a great development. The SDN technology is characterized mainly because the control of the network falls on a new figure not exiting in conventional networks: the controller. This means that network administrators can configure and manage the network as they wish. The separation of this control layer from the data layer produces advantages and increases the speed of innovation in networks. This type of networks have several characteristics that differentiate them from other mobile networks and these characteristics must be taken into consideration when making a correct configuration. The use of SDN technology is proposed as a possible resource to establish an efficient communication in these networks, but it is a very complex challenge. In this End-of-Grade Work, an exploration of this technology is mainly carried out. This exploration can be divided into different phases. First, a study of the SDN technology and the OpenFlow protocol is made. It also proceeds to the choice of an open source license controller. It is important to remember that the controller is the main figure of the SDN networks. With the decision already taken of which controller to choose, an exploration of it is carried out thanks to the simulation tool Mininet. Thanks to this tool, test can be done on different topologies and with diverse configurations of the controller to identify problems and work on solutions for these problems. Once it is achieved a configuration of the controller that adjust to the needs of this End-of-Grade Work a scan of SBC (Single-board computer) platforms in the laboratory is done, specifically the platforms are Raspberry Pi. These devices are very low cost computers that have the approximate size of the palm of a hand. The equipment is the configured using the OVS (Open Virtual Switch) software. Different test are made on these devices. The first are carried out on a wired scenario and finally a exploration of the wireless interface of the devices is taken.
One of the most developed technologies in recent years is related to UAVs (Unmanned Aerial Vehicles), commonly known as drones. These devices, characterized mainly by flying thanks to a remote control, have numerous utilities in both military and civil fields. The advantages of drones are numerous. They reduce time in carrying out different operations and human irrigation as they are unmanned devices. They can access most spaces and be handled easily. At the same time, SDN (Software Defined Networking) is another technology that, like UAVs, has recently undergone a great development. The SDN technology is characterized mainly because the control of the network falls on a new figure not exiting in conventional networks: the controller. This means that network administrators can configure and manage the network as they wish. The separation of this control layer from the data layer produces advantages and increases the speed of innovation in networks. This type of networks have several characteristics that differentiate them from other mobile networks and these characteristics must be taken into consideration when making a correct configuration. The use of SDN technology is proposed as a possible resource to establish an efficient communication in these networks, but it is a very complex challenge. In this End-of-Grade Work, an exploration of this technology is mainly carried out. This exploration can be divided into different phases. First, a study of the SDN technology and the OpenFlow protocol is made. It also proceeds to the choice of an open source license controller. It is important to remember that the controller is the main figure of the SDN networks. With the decision already taken of which controller to choose, an exploration of it is carried out thanks to the simulation tool Mininet. Thanks to this tool, test can be done on different topologies and with diverse configurations of the controller to identify problems and work on solutions for these problems. Once it is achieved a configuration of the controller that adjust to the needs of this End-of-Grade Work a scan of SBC (Single-board computer) platforms in the laboratory is done, specifically the platforms are Raspberry Pi. These devices are very low cost computers that have the approximate size of the palm of a hand. The equipment is the configured using the OVS (Open Virtual Switch) software. Different test are made on these devices. The first are carried out on a wired scenario and finally a exploration of the wireless interface of the devices is taken.
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Keywords
UAVs, SDN (Software Defined Network), Redes de comunicaciones, OpenFlow, Controladores, OVS (Open Virtual Switch)