The most troublesome problem in deploying streaming media service is the package-lost delay, which results in too much buffer, low-quality image and interrupted play.

在移动网络上开展流媒体业务，最大的问题是无线环境的时变性容易引起丢包时延，导致缓冲过多、图像质量差和播放中断。

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At the present time, the most realistic approach is to use fiber delay line as optical buffer.

目前，在光域比较现实的还是采用光纤延迟线作光缓存。

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The analysis shows that although loss probability decreases through expanding buffer capacity, delay and delay jitter increase, whose effect on QOS will not be negligible.

研究结果表明，增大缓冲器容量可以降低信元丢失率，但会增大时延和时延抖动。

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