METHOD FOR SELECTING SPECTRUM IN COGNITIVE RADIO NETWORK

摘要

PURPOSE: A spectrum selection method in a recognition wireless network is provided to independently select a spectrum and detect without additional control message by considering hardware restriction such as portability, mobility, power consumption and et cetera. CONSTITUTION: Whether a channel is an idle channel or not is detected in a time slot according to a predetermined channel selection method for a predetermined period consisting of the time slot. Communication is performed through the idle channel. An initial channel is assigned when the predetermined period passes. The predetermined channel selection method is a method detecting whether the next time slot is an idle channel or not with respect to the same channel when the detected time slot is an idle channel.