首页> 外文会议>Information and Communication Technologies, 2006. ICTTA '06. 2nd >Fault-Tolerance of Capillary Multi-Path Routing for Real-Time Multimedia Streaming with Forward Error Correction
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Fault-Tolerance of Capillary Multi-Path Routing for Real-Time Multimedia Streaming with Forward Error Correction

机译:具有前向纠错功能的实时多媒体流的毛细管多路径路由容错

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Using forward error correction (FEC) in off-line streaming, permitting large buffers, yields spectacular results, but real-time streaming puts hard restrictions on the buffer size and therefore does not allow FEC to deal with long link failures on a single path route. Multi-path routing however can make FEC efficient also for realtime streaming. In this paper, we introduce a capillary routing algorithm offering a wide range of multi-path routing topologies starting from a simple (max-flow multi-path) solution toward more reliable and secure schemes obtained by recursively spreading individual sub-flows. The friendliness of a particular multi-path routing can be measured by adaptive redundancy overall need (ARON), which is proportional to the sender's total channel coding effort needed for recovering the failure of each individual link in the multi-path route. A dozen of capillary routing layers are built on several hundreds of network samples obtained from a random walk wireless mobile ad-hoc network (MANET). Rating of these routing suggestions with ARON shows that the FEC friendliness improves substantially as the spreading of the routing grows
机译:在离线流中使用前向纠错(FEC),允许使用较大的缓冲区,可产生惊人的结果,但是实时流对缓冲区的大小施加了严格的限制,因此不允许FEC处理单路径路由上的长链路故障。但是,多路径路由还可以使FEC对于实时流式传输也有效。在本文中,我们介绍了一种毛细管路由算法,该算法提供了广泛的多路径路由拓扑,从简单的(最大流多路径)解决方案开始,到通过递归分布各个子流而获得的更可靠,更安全的方案。特定的多路径路由的友好性可以通过自适应冗余总体需求(ARON)来衡量,该需求与恢复多路径路由中每个单独链路的故障所需的发送方总信道编码工作量成正比。在从随机游走无线移动自组织网络(MANET)获得的数百个网络样本上构建了十二个毛细管路由层。通过ARON对这些路由建议的评级表明,随着路由范围的扩大,FEC的友好性大大提高了

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