Estimation Theory-Based Robust Phase Offset Determination in Presence of Possible Path Asymmetries
Estimation Theory-Based Robust Phase Offset Determination in Presence of Possible Path Asymmetries
复制标题
存在可能路径不对称时基于估计理论的鲁棒相位偏移确定
DOI:
10.1109/tcomm.2017.2761879
复制
发表时间:
2018
影响因子:
8.3
通讯作者:
Blum, Rick S.
中科院分区:
文献类型:
--
作者:
Karthik, Anantha K.;Blum, Rick S.
This paper addresses the problem of robust clock phase offset estimation for the IEEE 1588 precision time protocol in the presence of unknown asymmetric network path delays. The presence of an unknown asymmetry between the path delays can lead to significant degradation in the performance of a phase offset estimation scheme. Assuming multiple master-slave communication paths are available, we first provide lower bounds on the best achievable performance for a phase offset estimation scheme in the presence of asymmetric master-slave communication paths. We then present a novel phase offset estimation scheme that employs the expectation-maximization algorithm to identify the asymmetric master-slave communication paths. After discarding information from these paths, we employ the minimax optimum vector location parameter estimator for estimating the phase offset. Simulation results are presented to show that the proposed phase offset estimation scheme exhibits performance close to the lower bounds in a wide variety of network scenarios.
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影响因子:
8.3
作者:
Anand Guruswamy;Rick S. Blum;S. Kishore;Mark Bordogna
通讯作者:
Anand Guruswamy;Rick S. Blum;S. Kishore;Mark Bordogna
DOI:
10.1109/ispcs.2012.6336621
发表时间:
2012
期刊:
2012 IEEE International Symposium on Precision Clock Synchronization for Measurement, Control and Communication Proceedings
影响因子:
--
作者:
Tal Mizrahi
通讯作者:
Tal Mizrahi
DOI:
--
发表时间:
2015
期刊:
China Summit and International Conference on Signal and Information Processing
影响因子:
--
作者:
Jiangfan Zhang;Rick S. Blum
通讯作者:
Rick S. Blum
DOI:
10.1109/ispcs.2012.6336612
发表时间:
2012
期刊:
2012 IEEE International Symposium on Precision Clock Synchronization for Measurement, Control and Communication Proceedings
影响因子:
--
作者:
Tal Mizrahi
通讯作者:
Tal Mizrahi
DOI:
--
发表时间:
2006
期刊:
IEEE International Workshop on Factory Communication Systems
影响因子:
--
作者:
G. Gaderer;A. Treytl;T. Sauter
通讯作者:
T. Sauter