On supporting mission-critical multimedia applications

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Abstract
Mission-critical multimedia applications such as advanced command and control are dynamic and criticality-driven. Taking into consideration the application criticality as well as media quality-of-service (QoS) and timing requirements, we develop a multiresource management system that enables criticality-based resource preemption and QoS-based dynamic resource negotiation and adaptation. Our performance study indicates that our approximation solution is near optimal and that it outperforms a criticality-cognitive baseline algorithm. We also show that the dynamic QoS adjustment technique largely improves the quality of service for video streams. The criticality and QoS-based multiresource management system is part of the Presto multimedia system environment prototyped at Honeywell for mission-critical applications.

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