Mobility

Mobile Terminal Interfaces Management for Energy Efficiency

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Executive Summary

Coexisting heterogeneous wireless access networks are now-a-days common in many places, and growing fast. This, together with the increasing service demand from nomad end-users, indicates that a re-assessment of current mobile terminals' management mechanisms, namely concerning QoS, energy efficiency, etc., is necessary, as well as more suitable access selection polices. The IEEE 802.21 standard provides link layer intelligence as well as associated network information to the layers above in order to optimize handovers between heterogeneous networks, of different technologies, such as Wi-Fi, 3GPP and WiMAX. It is key to manage efficiently the available interfaces embedded in the modern mobile terminals, not only to appropriately provide the requested services to the end-user, but also to do that in an energy efficient way.

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