On the classification of binary space shift keying modulation

Blind and non-cooperative classification of the modulation employed in signals originating from unknown or partly known sources has widespread applications in civilian and military contexts. One of the most recent and interesting approaches to digital modulation which has been enabled by multiantenna transceivers is the spatial modulation, where the indices of the transmit antennas activated in a given symbol period are utilized to transmit information bits. Clearly, existing modulation classification methods, designed for the identification of conventional modulation types, are not capable of classifying the family of spatially modulated signals that make use of the space dimension. In this work, for the first time in the literature, a modulation classification method is proposed for a modulation type belonging to the family of Spatial Modulations: the Binary Space Shift Keying modulation (BSSK)