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METHOD AND DEVICE OF SIGNAL PRESENCE DETECTION IN A RADIO COMMUNICATION SYSTEM BASED ON A COGNITIVE RADIO, CAPABLE OF REDUCING CALCULATION
METHOD AND DEVICE OF SIGNAL PRESENCE DETECTION IN A RADIO COMMUNICATION SYSTEM BASED ON A COGNITIVE RADIO, CAPABLE OF REDUCING CALCULATION
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机译:基于认知无线电的能够减少计算的无线电通信系统中信号出现的检测方法和装置
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摘要
PURPOSE: A method and device of signal presence detection in a radio communication system based on a cognitive radio are provided to detect whether a received linear modulation signal is a specified user.;CONSTITUTION: In a method and device of signal presence detection in a radio communication system based on a cognitive radio, a preliminary calculation part(304) calculates an eigenvalue and eigenvector of the Covariance matrix of a frequency signal by using vectorized Fourier transformation of whole channel impulse response. A calculation unit(305) obtains enough statistics by using a frequency signal vector, an eigenvalue, and eigenvector. The calculation unit calculates a boundary value by using a detection probability or a false alarm probability and the eigenvalue. When enough statistics is larger than the boundary value, the detection unit(306) decides whether the transmission signal exists.;COPYRIGHT KIPO 2012
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