A Cognitive Radio-Based Energy-Efficient System for Power Transmission Line Monitoring in Smart Grids

Table 2

Symbols and the simulation parameters.

Symbol	Description	Value
	Binary decision variable indicating the assignment; if a channel is assigned; else zero
	Frame duration
	Control message duration in the transmission scenario
	Control message duration in the idle scenario
	Channel bandwidth
	Maximum transmission power
	Channel switching power
	Circuity power
	Idling power
	Number of channels
	Number of frequencies