Adaptación de la función objetivo en protocolo de enrutamiento RPL con QoS
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Fecha
2016
Autores
Martínez Pinedo, Elker
Sierra Ibáñez, Randy
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Ediciones Universidad Simón Bolívar
Facultad de Ingenierías
Facultad de Ingenierías
Resumen
La calidad de servicio es esencial en la implementación de las redes de baja potencia y perdida de paquetes LLN (Low Power and Lossy Networks), sin embargo, las características de estas redes imponen varias limitantes para garantizar dicha calidad. Aunque estas redes cuentan con un protocolo de enrutamiento especifico RPL (Routing Protocol Low Power and Lossy Networks), el cual define funciones objetivo, métricas y restricciones, este protocolo no provee calidad de servicio por defecto, deteriorando el proceso de selección de ruta [l] y alejándose de su objetivo en el concepto del Internet de las Cosas.
En el presente documento se plantea una nueva métrica de enrutamiento llamada BFETX, con ayuda del diseño de escenarios de red, del estudio de resultados en simulaciones y del empleo de criterios de evaluación de métricas de enrutamiento; además, mediante el método inductivo y especificaciones funcionales estandarizadas se hallan los hitos apropiados para incrementar la calidad de servicio de las LLN en cuanto a tiempo de vida, consumo de energía, latencia y pérdida de paquetes. Se implementaron y analizaron las funciones objetivo OFO, MRHOF y BFETX validando la nueva métrica de enrutamiento; sin embargo, aspectos de diseño que afectan el proceso de envío de paquetes se escapan de la presente investigación, pero pueden abordarse en trabajos futuros como: despliegue, heterogeneidad de nodos o enlaces, tolerancia a fallas, escalabilidad, movilidad, conectividad y cobertura entre otros.
Este trabajo aporta significativamente al enrutamiento de redes telemáticas específicamente en redes de sensores, ofreciendo sensibilidad a los cambios en el entorno de red, beneficiando a los usuarios del Internet de las Cosas IOT (Internet of Things); usuarios que están cambiando hacia aplicaciones de alta definición, velocidad e interactividad soportadas en estas redes.
Quality of service is essential in the implementation of low power networks and loss of LLN packets (low power and lost networks), however the characteristics of these networks impose several limitations to guarantee quality. [l] and moving away from its objective in the concept of conduct of conduction, of conduction, of conduction, of conduction and of conduction. Internet of Things. In this paper, a new routing metric called BFETX is proposed, with the help of the design of red scenarios, the study of results in simulations and the use of evaluation criteria of routing metrics; In addition, through the inductive method and standardized functional specifications are found the appropriate milestones to increase LLN service quality in terms of lifetime, power consumption, latency and packet loss. The objective functions OFO, MRHOF and BFETX were implemented and analyzed by validating the new routing metric; however, design that affect the process of sending packets escapes current research, but can address future work such as: deployment, heterogeneity of nodes or links, fault tolerance, scalability, mobility, connectivity and coverage, among others. This work contributes significantly to the routing of telematics networks specifically in networks of sensors, offering sensitivity to the changes in the environment of red, benefiting the users of the Internet of Things; Users who are switching to high-definition, speed and interactivity applications supported on these networks
Quality of service is essential in the implementation of low power networks and loss of LLN packets (low power and lost networks), however the characteristics of these networks impose several limitations to guarantee quality. [l] and moving away from its objective in the concept of conduct of conduction, of conduction, of conduction, of conduction and of conduction. Internet of Things. In this paper, a new routing metric called BFETX is proposed, with the help of the design of red scenarios, the study of results in simulations and the use of evaluation criteria of routing metrics; In addition, through the inductive method and standardized functional specifications are found the appropriate milestones to increase LLN service quality in terms of lifetime, power consumption, latency and packet loss. The objective functions OFO, MRHOF and BFETX were implemented and analyzed by validating the new routing metric; however, design that affect the process of sending packets escapes current research, but can address future work such as: deployment, heterogeneity of nodes or links, fault tolerance, scalability, mobility, connectivity and coverage, among others. This work contributes significantly to the routing of telematics networks specifically in networks of sensors, offering sensitivity to the changes in the environment of red, benefiting the users of the Internet of Things; Users who are switching to high-definition, speed and interactivity applications supported on these networks
Descripción
Palabras clave
Redes de baja potencia y perdidas, Protocolo de enrutamiento, Función objetivo, Métrica de enrutamiento, Low power and lost networks, Routing protocol, Objective function, Routing metrics