Dynamic network adaptation framework employing layered relative priority index for adaptive video delivery

Abstract

Delivering high-quality media contents robustly over a wide range of network conditions of the wired/wireless Internet is a highly challenging task. To address this challenging task, the continuous media applications at the edge of network have become more and more adaptive while the best-effort Internet is slowly progressing towards improved networking services. Thus, the role of network adaptation, which dynamically links the quality demand of application contents to the underlying networking services, has become more crucial. In this paper, we present a novel network adaptation approach that efficiently leverages its awareness of both media contents and underlying networks. Detailed discussion on the framework will be covered with deployment scenarios such as the adaptive coordination of source-channel error control for wireless video and the mapping of prioritized video packet to the available network QoS (quality of service) services.