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CHANNEL SENSING SCHEME USING A NATURAL QUIET PERIOD IN A COGNITIVE RADIO SYSTEM, PARTICULARLY FOR TRANSMITTING MORE DATA IN A CERTAIN TIME BY REDUCING A QP(QUIET PERIOD)
CHANNEL SENSING SCHEME USING A NATURAL QUIET PERIOD IN A COGNITIVE RADIO SYSTEM, PARTICULARLY FOR TRANSMITTING MORE DATA IN A CERTAIN TIME BY REDUCING A QP(QUIET PERIOD)
PURPOSE: A channel sensing scheme using a natural quiet period in a cognitive radio system is provided to reduce transmission period by reducing the frequency of QP allocation through the energy detection with an NQP.;CONSTITUTION: An NQP information collecting unit(401) searches, from a network having a data transmission and reception period and an idle period, the period in which data transmission is stopped. A channel searching unit(402) searches the searched period, and a channel searching information processor(403) determines the length of idle period based on the searching result. In a reservation-based mesh network, the period in which data transmission is stopped corresponds to an IFS(Inter Frame Space).;COPYRIGHT KIPO 2010
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