Cross-Layer Architecture for Adaptive Real-Time Multimedia in Heterogeneous Network Environment

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Executive Summary

Despite the interest, the utilization of today's networking environment including a variety of access technologies and various services and capabilities is still minimal. Multiaccess mobile devices already on the market provide a capability to hand over the heterogeneous networks but so far there has not been any commonly approved way to efficiently capitalize on this feature. Media Independent Handover Services standard specified by the IEEE 802.21 working group is expected to establish the basis for heterogeneous handovers. Although IEEE 802.21 has usage also beyond heterogeneous handovers, its capabilities do not fulfill all the requirements of adaptive multimedia transmission.

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