问题 问答题 简答题

请简述ADSL的快速模式Fast与交织模式Interleaved的区别与应用场合?

答案

参考答案:

快速模式和交织模式的区别在于:快速模式在信元调制和纠错方面的手段比交织模式要简单的多,快速模式只有前向纠错,而交织模式具有加扰(增加BIT相关性,用于纠错),交织深度及一些缓存等方面的纠错手段。交织模式对数据包文先进行校验处理,利用芯片的纠错能力,增强了线路的抗干扰性,使ADSL线路稳定性增强,但交织模式会增加线路传输的时延。

根据实际线路情况,在线路情况较使用Fast,线路情况不好使用Interleaved。

完形填空
完形填空。
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