Joint Channel Allocation and Power Control Based on Long Short-Term Memory Deep Q Network in Cognitive Radio Networks

Table 1

Notation of definitions.

Symbol	Definition
	The transmit power of the ith PU in AP p at time t
	The transmit power of the jth SU in AP p at time t
	The channel gain of AP p from the ith PU transmitter to the ith PU receiver at time t
	The channel gain of AP p from the jth SU transmitter to the jth SU receiver at time t
	The channel gain of AP p from the jth SU transmitter to the ith PU receiver at time t
	The channel gain of AP p from the ith PU transmitter to the jth SU receiver at time t
	The channel gain of AP p from the kth SU transmitter to the jth SU receiver (j is not equal to k) at time t
	The noise power received by the ith PU of AP p at time t
	The noise power received by the jth SU of AP p at time t
	The SINR threshold required by the PU
	The SINR threshold required by the SU
	The number of PUs in the area served by AP p
	The number of SUs in the area served by AP p
	The distance from the ith PU in AP p to the microcells at time t
	The distance from the jth SU in AP p to the microcells at time t