15.2 Detection of Multicarrier Modulations using 4th-Order Cumulants
نویسنده
چکیده
0)2-99-42-65-19 15/06/1999 This paper deals with modulation classification. Our goal is to discriminate single-carrier (SC) modulations from multicarrier (MC) modulations of OFDM type. Because MCmodulations are asymptotically Gaussian, we propose here a detector using the statistical test of G. Giannakis and M. Tsatsanis [9] based on fourth-order cumulants. This test is here adapted to the specific case of digital modulations which allows to reduce the algorithm complexity. Simulations are provided and show that in the worst case (filtered QAM-256 versus 32-OFDM) the detector achieves a probability of detection Pd=O.99 for a probability of false alarm Pfa=10-2.
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