Cyclostationarity-Inducing Transmission Method for Classification of OFDM-Signaling-Based Systems

摘要

This paper presents a cyclostationarity-inducing transmission technique that enables the receiver to classify several different systems employing OFDM (Orthogonal Frequency Division Multiplexing) as a common air interface. Several systems using different air interfaces may have different properties of cyclostationarity that can be utilized to classify them. However, this is usually not possible when the same air interface is used. To address this problem, we consider a method that induces different properties of cyclostationarity in the transmitter of different systems. Specifically, we propose a cyclostationarity-inducing transmission method based on dedicating a few subcarriers at each OFDM symbol to the transmission of specific signals so that the whole OFDM frame comprising several OFDM symbols exhibits cyclostationarity at pre-chosen cycle frequencies.