This letter considers consensus time synchronization for wireless senor networks with random communication delays. Based on weighted median method, two different relative skew estimators are proposed to obtain accurate estimates: a gap-based estimator and a novel low storage estimator. Then, the estimated skew is applied to average consensus approach to compensate the clock skew and offset, and the synchronization performance is improved. Theoretical convergence analysis and simulations are presented to demonstrate the effectiveness of the proposed estimators under time delays.

中文翻译：

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存在通信延迟的平均共识时间同步的基于加权中值的时滞估计

这封信考虑了具有随机通信延迟的无线传感器网络的共识时间同步。基于加权中值法，提出了两种不同的相对偏斜估计器来获得准确的估计：基于间隙的估计器和新的低存储估计器。然后，将估计偏斜应用于平均一致性方法以补偿时钟偏斜和偏移，从而提高同步性能。提出了理论收敛分析和模拟，以证明所提出的估计器在时间延迟下的有效性。