Publication: Diseño y desarrollo de un monitor para tráfico multimedia en un entorno residencial
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2013-09-24
Defense date
2013-10-03
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Abstract
El siguiente TFG se basa en el desarrollo de un programa en Java que modifique paquetes SIP (Session Initiation Protocol) que contengan solicitudes INVITE con el fin de mejorar las comunicaciones multimedia, sobre todo las videoconferencias. Esta modificación consistirá en seleccionar los codecs adecuados en función del ancho de banda disponible en la red de acceso del usuario.
El trabajo está dirigido para su instalación en una Whitebox de Samknows, enmarcándose dentro del proyecto que la empresa está desarrollando junto con la Comisión Europea.
La solución propuesta se desarrollará en tres partes:
1. Recepción del paquete: se desviará el paquete hacia un puerto determinado, donde nuestro programa tendrá una pila escuchando las solicitudes que lleguen y su tipo.
2. Obtención de la información multimedia: obtendremos la información multimedia de la carga SDP (Session Description Protocol) y la compararemos con la que nos daría una buena calidad en función del ancho de banda disponible en ese momento, quedándonos con los codecs comunes a ambos.
3. Modificación del mensaje: una vez sepamos los codecs comunes, modificaremos la carga SDP y posteriormente el mensaje, para enviarlo modificado al servidor.
Esta modificación se realiza de manera transparente al usuario y en tiempo real, con el fin de obtener un mejor rendimiento y experiencia de usuario en las comunicaciones multimedia, sin que esto suponga una penalización en términos de instalación del software, utilización de éste y tiempo de espera para iniciar las comunicaciones.
The next Bachelor Thesis is based on the development of a Java program that modifies SIP (Session Initiation Protocol) packets which contain INVITE request with the goal of improving multimedia communications, mainly videoconferences. This modification will consist on selecting the right codecs depending on the available bandwidth at the user access network. The job is focused for its installation in a Smaknows Whitebox, framing itself inside the project the company is developing with the European Commission (EC). The proposed solution will be developed in three steps: 1. Packet reception: the packet will be redirected towards a well-known port, where our program will have a stack which is listening to the arrived requests and its type. 2. Getting the multimedia information: we will get the multimedia information from the SDP (Session Description Protocol) load and we will compare it with the one that would give us good quality according to the available bandwidth at this moment, choosing the common codecs. 3. Message modification: when we know de common codecs, we will modify the SDP load and the message with it, and we will send de modified packet to the server. This modification is done transparently for the user and in real-time, with the purpose of getting a better performance and user experience in the multimedia communications, but don’t supposing a penalization in terms of software installation, use and wait time to start the communications
The next Bachelor Thesis is based on the development of a Java program that modifies SIP (Session Initiation Protocol) packets which contain INVITE request with the goal of improving multimedia communications, mainly videoconferences. This modification will consist on selecting the right codecs depending on the available bandwidth at the user access network. The job is focused for its installation in a Smaknows Whitebox, framing itself inside the project the company is developing with the European Commission (EC). The proposed solution will be developed in three steps: 1. Packet reception: the packet will be redirected towards a well-known port, where our program will have a stack which is listening to the arrived requests and its type. 2. Getting the multimedia information: we will get the multimedia information from the SDP (Session Description Protocol) load and we will compare it with the one that would give us good quality according to the available bandwidth at this moment, choosing the common codecs. 3. Message modification: when we know de common codecs, we will modify the SDP load and the message with it, and we will send de modified packet to the server. This modification is done transparently for the user and in real-time, with the purpose of getting a better performance and user experience in the multimedia communications, but don’t supposing a penalization in terms of software installation, use and wait time to start the communications
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Multimedia, Videoconferencia, Desarrollo de software, Java (Lenguaje de programación), Redes de comunicación