Fig. 2From: A comprehensive wireless sensor network reliability metric for critical Internet of Things applicationsSN states: the paths from the top node to a bottom node correspond to the SN states with non-zero probability. The probability of a path, i.e., the probability of a state, is the product of the probabilities in the associated transitions. The SN states corresponding to the relay mode and the on mode are both marked by a dark shade of grayBack to article page