Patent ID: 9077446
Filing Date: 2015-07-07
Classification: H04B,H04W

Abstract:
1. A method for performing spectrum sensing to detect a signal for a terminal of a primary user in each sensing node, the method comprising: performing, by the sensing node, spectrum sensing to detect a signal for a terminal of a primary user; computing, by the sensing node, a local test statistic value on the basis of the result of the spectrum sensing; calculating, by the sensing node, a transmission probability on the basis of the computed local test statistic value, wherein the calculating the transmission probability includes performing order detection detecting how greatest its local test statistic value is among statistic values by other sensing nodes in size, and determining the transmission probability according to the result of the order detection; and transmitting, by the sensing node, sensing information to a fusion center on the basis of the calculated transmission probability, wherein it is determined whether there is a signal for a terminal of a primary user on the basis of the transmitted sensing information at the fusion center.