在融合DVB-H和DTMB网络上支持可扩展的多媒体流

Hongfei Du, N. Conci, N. Hendrich
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引用次数: 1

摘要

本文研究了在多标准综合多媒体广播网络(即DVB-H和DTMB)上传输可扩展视频的有效解决方案。在此背景下,开发了一种称为网络感知流适应(NASA)框架的新方法,通过底层异构广播标准向最终用户提供可扩展的视频流。仿真结果表明,该方案显著提高了信道利用率,获得了较好的视频质量。一种有效的动态流适应(DSA)机制可以根据当前的接收条件、网络资源和信道变化执行最合适的流适应,从而提供渐进式感知视觉显示质量和细粒度QoS性能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Supporting Scalable Multimedia Streaming over Converged DVB-H and DTMB Networks
This paper studies an efficient solution for transporting scalable video over multi-standard integrated multimedia broadcasting networks, namely DVB-H and DTMB. A novel approach, called network-aware stream adaptation (NASA) framework, is developed within this context to deliver the scalable video streams to the end users over the underlying heterogeneous broadcasting standards. Simulation results prove that the proposed scheme significantly improves the channel utilization and achieves better video quality. An efficient dynamic stream adaptation (DSA) mechanism is then foreseen to perform the most appropriate stream adaptation in response to the current reception conditions, network resources, and channel variations, offering progressive perceived visual display quality and fine-granularity QoS performance.
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