Typical Set Cognitive Sensing

Table 1

Summary of all the sensing outcomes for every hypothesis. In this table, O represents a correct global decision (i.e., FC's decision = real event), while × represents an erroneous global decision (i.e., FC's decision ≠ real event).

Real event	(𝑥1,…,𝑥𝑁)∈𝒜^𝑁𝜖	(𝑥1,…,𝑥𝑁)∉𝒜^𝑁𝜖
PU is active	O	× (miss detection)
PU is silent	× (false alarm)	O