2013 21st IEEE International Conference on Network Protocols (ICNP)
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Abstract

The increased availability and data rates of cellular 3G/4G networks combined with the growing use of mobile applications highly affect the Quality of Experience (QoE) perceived by the end-user. The QoE is affected in two ways: First, the data rates in the networks are low when multiple users simultaneously request content; second, the transmission of data over slow connections consumes a considerable amount of energy compared to faster connections. Both can be avoided by better management of the available resources. This paper proposes a new approach, taking the energy efficiency into account as a key QoE aspect. Based on user mobility models, the available connectivity can be predicted, from which estimates for the energy consumption and expected QoE can be derived. An architecture is sketched, which combines QoE prediction for current and future network connections with energy efficiency on mobile devices.
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