COGNITIVE RADIO APPARATUS AND COMMUNICATION METHOD

摘要

A cognitive radio apparatus according to an embodiment comprises an estimation module for generating a channel estimation signal transmitted to a random reception apparatus located in the random channel when the random channel is selected among multiple channels to execute communication in a cognitive radio network; a communication module for transmitting the channel estimation signal to the random reception apparatus and for receiving a channel response signal from the random reception apparatus; and a control module for controlling the communication module to transmit a communication signal set for the random channel or a variable communication signal for converting the communication signal to the random reception apparatus when a result on which the random channel is located in a deep fading section is determined based on the channel response signal.