有限恢复时间下基于卷积码的FEC评估及其在实时传输中的应用

2002 Pacific Rim International Symposium on Dependable Computing, 2002. Proceedings. Pub Date : 2002-12-16 DOI:10.1109/PRDC.2002.1185643

M. Arai, H. Kurosu, S. Fukumoto, K. Iwasaki

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引用次数: 1

摘要

在本文中，我们评估了在恢复时间限制下使用卷积码作为丢包恢复方法的有效性。我们分析了用接收包数限制代替时间限制的方法的操作，并推导了在后续包到达限制数之前丢失包被恢复的概率。我们还在模拟结果中评估了这种概率，并估计了解码器所需的缓冲区大小。并将该方法应用于构建可靠的视频会议系统中，观察了QoS的改善情况。

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Evaluation of convolutional-code-based FEC under limited recovery time and its application to real-time transmission

In this paper we evaluate the effectiveness of using convolutional codes under a time limit for recovery as a method for packet loss recovery. We analyze the method's operation when a limitation on the number of received packets is substituted for the time limitation, and derive the probability for a lost packet being recovered before the arrival of the limiting number of succeeding packets. We also evaluate this probability in the results of simulation and estimate the buffer size required for a decoder. Moreover we apply this method in constructing a dependable videoconference system and observe the resulting improvement in QoS.

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2002 Pacific Rim International Symposium on Dependable Computing, 2002. Proceedings.

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