Wireless Communications and Mobile Computing

Research Article

Discrete-Time Analysis of Cognitive Radio Networks with Nonsaturated Source of Secondary Users

Table 1

State classification in the saturated system.


	state
state #	Channel	SU	phases defining internal states	number of internal states

	busy	sleeping	BPH, LPH, TPH
	busy	sensing	BPH, TPH
	idle	sleeping	IPH, LPH, TPH
	idle	sensing	IPH, SPH, TPH
	idle	transmitting	IPH, TPH

BPH: channel busy phase; IPH: channel idle phase; LPH: SU sleeping phase; SPH: SU sensing phase; TPH: SU trans. phase; TPH: TPH (extended) at interruption.