Dear all,

I am planning to measure synchronization error in a large-scale network.
For this, basically I need to see the difference in local clock between 
two nodes at a moment.
It was easy in lab environment that nodes are all in a one-hop range,
because we can have a reference signal broadcaster and each node records 
its local clock tick when receiving the reference signal.

However, sometimes the two nodes can be physically in far distance in 
the large network.
so that it is not easy to measure the local clock tick in different 
nodes at the "same instant".

Could you suggest me any idea to resolve this issue?

Thanks in advance.

Jinkyu Koo





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