Science China Information Sciences

, Volume 57, Issue 10, pp 1–10 | Cite as

Dynamic hybrid multimedia distribution scheme based on network reconfiguration

Research Paper

Abstract

This paper addresses a key challenge in the design and implementation of multimedia distribution systems so that users can experience good performance with minimal operational costs. In current structures, the conflict between network architectures and service provision causes a decline in users’ expectations of quality. Network reconfiguration provides a feasible solution for dynamic distribution as a primitive for both quality and efficiency. In this paper, we first present a scheme for a layer-based hybrid multimedia distribution system LHMDS, and then introduce a dynamic sliding push-delivery mechanism based on reconfiguration of the distribution of hotspot files. The LHMDS adopts a unique structure with hybrid channels, including broadcast and unicast ones, and adjusts its distribution topology according to the congestion status, thereby pushing hotspot files dynamically. The mechanism dynamically pushes files to upper or lower network layers depending on the network status while distributing hotspot files by broadcast channels and other files by unicast ones. This guarantees service quality as well as improving resource utilization. Finally, we validate the feasibility and performance of the scheme through a simulation.

Keywords

network reconfiguration hybrid distribution dynamic sliding push-delivery 

基于网络重构的动态流媒体混合分发机制

摘要

本文提出一种基于网络重构的动态流媒体混合分发方案, 并给出一种面向热点数据的动态滑动推送机制, 该机制采用“广播+单播”的独特流媒体分发架构, 基于资源重构可支持面向网络拥塞状态的动态分发网络拓扑变化, 从而实现热点流媒体数据的滑动推送, 在保证用户服务质量的同时提高了资源利用率。

关键词

流媒体混合分发 网络重构 动态推送 
102309 

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Supplementary material

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Copyright information

© Science China Press and Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  1. 1.National Digital Switching System Engineering and Technological Research CenterZhengzhouChina

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