Components mobility for energy efficiency of digital home

The number of connected devices in the home is growing dramatically, increasing the part of the Digital Home in the electric power demand. Reducing the overall energy consumption of the Digital Home becomes a concern in everyday life. Moving applications to the smaller set of devices enables to increase the number of devices that can be put into low power state, and thus reduce energy consumption. However, the application deployment constraints and the Digital Home heterogeneity limit the choice in deployment solutions onto available devices. We propose to consider distributed component-based applications to overcome this limitation. The distribution of applications constraints over its components improves their mobility, i.e., increasing the number of devices on which a component can be deployed. This approach is optimized to reduce the set of processed solutions. Moreover, the proposed architecture reacts continuously to relevant modifications in the Digital Home software architecture (connection and disconnection of devices, start and stop of applications) to always meet energy efficiency. The architecture is also designed to limit its own energy consumption impact. The feasibility of the approach is assessed with Digital Home applications and migration policies between devices.