Implementación heterogénea de LoRaWan para redes IOT dependientes de aplicaciones
Resumen
En este estudio, presentamos una red LoRa heterogénea dependiente de la aplicación. Los estudios previos sobre LoRaWAN y, en particular, los estudios que se basan en el uso de la velocidad de datos adaptativa para optimizar el rendimiento de la red se basan únicamente en la pérdida de ruta de los nodos de la red con el supuesto de que todos los nodos de la red tienen requisitos similares en términos de velocidad de datos y latencia. En una implementación a gran escala de la vida real, es poco probable que este sea el caso, ya que la tendencia actual de implementación de LoRaWAN muestra que las implementaciones prácticas se basan en servicios. Este enfoque significa que las aplicaciones críticas sufrirán problemas de confiabilidad ya que tendrán que competir con servicios no críticos por los mismos recursos. Para abordar este problema, proponemos una LoRaWAN heterogénea que es capaz de brindar soporte para aplicaciones que van desde tolerantes a demoras hasta intolerantes a demoras con confiabilidad mejorada a través de la asignación preferencial de parámetros de transmisión. Nuestro estudio muestra que este enfoque puede aumentar la probabilidad de una transmisión de enlace ascendente exitosa de las aplicaciones críticas hasta en un 44 por ciento y para transmitir nodos dentro de un radio de 3 km de la puerta de enlace, LoRaWAN heterogénea posee una tasa de entrega de paquetes de enlace ascendente un 20 por ciento más alta en comparación con la red homogénea a costa de un consumo energético ligeramente superior.
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