Maximum Likelihood Estimation of clock parameters for synchronization of wireless sensor networks

被引：0

作者：

Chaudhari, Qasim M. ^{[1
]}

Serpedin, Erchin ^{[1
]}

机构：

[1] Texas A&M Univ, Dept Elect & Comp Engn, College Stn, TX 77843 USA

来源：

2008 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING, VOLS 1-12 | 2008年

关键词：

synchronization; Maximum Likelihood Estimation;

D O I：

10.1109/ICASSP.2008.4518160

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

Clock synchronization plays a fundamental role in the operation of wireless sensor networks. This paper derives the Maximum Likelihood Estimator (MLE) of clock phase offset and skew between two nodes that assume a two-way timing message exchange mechanism to achieve synchronization. The MLE is derived under quite general conditions assuming an exponential distribution for the variable network delays and the presence of an unknown deterministic component due to the fixed network delays.

引用

页码：2517 / 2520

页数：4