Identification of GSM and LTE signals using their second-order cyclostationarity
Ebrahim Karami, Octavia A. Dobre, Nikhil Adnani · 2015
Automatic signal identification (ASI) has various military and commercial applications, such as spectrum surveillance and cognitive radio. In this paper, a novel ASI algorithm is proposed for the identification of GSM and LTE signals, which is based on the pilot-induced second-order cyclostationarity. The proposed algorithm provides a very good performance at low signal-to-noise ratios and short observation times, with no need for channel estimation, and timing and frequency synchronization. Simulations and off-the-air signals acquired with the ThinkRF WSA4000 receiver are used to confirm the findings.