In general, the randomness in jammed state is due to the uncertainty of jamming parameters, and the time-variability in jammed state is due to the interference dynamics.
And The instantaneous node jammed state at time t0, Λ t 0, is the jammed state of the node at time t0, i.e., Λ t 0 = Λ j, if the node jammed state at time t0 is Λ j.
Here, the node jammed state is determined by the excessive received signal level.
Note that each node jammed state is univocally identified by the set of active jammers' channels.
Definition 1 The node jammed state Λ → denotes the jammed status of each channel in the node.
From analysis above, to get the estimation of IA, we need determine the node jammed state first.
To model the stochastic state of being jammed, we present a novel metric interference activity (IA), which is a statistical measuring of jammed state along with time.
We define the novel node jammed state and IA metric as follows.. To give a unified model in a general way, an N channel network is considered firstly.
Not only might there be a jammed state that is maximally random--the analogous, but more precise, concept to a random closest packed state--but there might also be some jammed structures that have a very low packing fraction.
Icosahedral short-range order (ISRO -embedded MGs exhISRO -embeddedjaMGsd statexhibite self-organized deformed zones, weakenedsults in the formation of numerous catastrophic deformed zones under relatively chaotic dynamics, and consequently multiple shear bands.
