Slave diversity: Using multiple paths to improve the accuracy of clock synchronization protocols
Slave diversity: Using multiple paths to improve the accuracy of clock synchronization protocols
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Slave多样性：使用多路径来提高时钟同步协议的准确性
DOI：
10.1109/ispcs.2012.6336621
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
Tal Mizrahi
中科院分区：
文献类型：
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作者：
Tal Mizrahi
在基于分组的网络上运行时钟同步协议带来了相当大的挑战，因为时钟精度对网络延迟行为高度敏感。随着基于分组的网络成为大多数需要时钟同步的应用的公共传输，精度要求变得越来越严格。本文提出了一种新的方法，在不增加协议消息总速率的情况下，利用主时钟和从时钟之间的多条通信路径来提高时钟精度。我们表明，多路径方法也可以用来减少非对称通信路径引起的时间误差。我们给出了仿真结果，证明了该方法的有效性。
Running clock synchronization protocols over packet based networks introduces a considerable challenge, since clock accuracy is highly sensitive to the network latency behavior. As packet based networks are becoming the common transport for most applications requiring clock synchronization, accuracy requirements are becoming increasingly stringent. In this paper we introduce a novel approach that uses multiple communication paths between the master and slave clocks to improve the clock accuracy without increasing the total rate of protocol messages. We show that the multi-path approach can also be used to reduce the time error caused by asymmetric communication paths. We present simulation results that demonstrate the effectiveness of our approach.