  In this paper, we study distributed channel triggering mechanisms for
wireless networked control systems (WNCSs) for conventional and smart sensors,
i.e., sensors without and with computational power, respectively. We first
consider the case of conventional sensors in which the state estimate is
performed based on the intermittent raw measurements received from the sensor
and we show that the priority measure is associated with the statistical
properties of the observations, as it is the case of the cost of information
loss (CoIL) [1]. Next, we consider the case of smart sensors and despite the
fact that CoIL can also be deployed, we deduce that it is more beneficial to
use the available measurements and we propose a function of the value of
information (VoI) [2], [3] that also incorporates the channel conditions as the
priority measure. The different scenarios and priority measures are discussed
and compared for simple scenarios via simulations.
