This paper presents a study that explores the relation between how the choice and use of an app depends on the network performance. While the relation between smartphone user behavior and contextual factors has been explored in previous research, the mobile networks' influence on the smartphone user behavior is largely unknown. Through analysis of a data set collected from ∼1500 users using Ericsson Apps, a logging tool for Android phones, the results show indeed that data demanding apps have a strong positive correlation between the relative usage and the network performance. For example, the results demonstrate that users are around 1.4 times more likely to use YouTube on LTE than on EDGE. This information, combined with an understanding of contextual factors, can be used to optimize networks by adapting the network performance to the user's requirements and real levels of consumption. Furthermore, it can be possible to tune services pro-actively and improve the Quality of Experience (QoE).
El siguiente artículo presenta un análisis de las métricas de QoS más relevantes para el servicio IPTV sobre una infraestructura de red Móvil basada en MIP V4 y MIP V6 y cómo las diferencias del funcionamiento de los protocolos influyen en la QoS. Para esto se realizó una investigación de los parámetros de QoS que son de gran importancia al momento de evaluar el servicio de IPTV y de igual forma la infraestructura de IPTV que se debía implementar sobre IMS. Asimismo como los protocolos de movilidad MIPV4 y MIPV6 afectan las distintas métricas para la evaluación del servicio. Con respecto a esto, los resultados arrojan que en MIPV6 la trasmisión del servicio es más eficaz que en MIPV4 y por lo tanto los retardos en el video son más bajos.
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