Cyclostationary Detection Using BPSK Signal in a Cognitive Radio System

Due to fixed available spectrum and the incomplete use of spectrum use necessitate a new communication technology, known as cognitive radio (CR). Cognitive radio is an intelligent device which can easily sense the available channel in an available spectrum. For spectrum sensing it basically uses three techniques Energy Detection, Matched Filter Detection and Cyclostationary Detection. In this paper spectrum detection is done by using cyclostationary detection which provide better results at low SNR in comparison to other techniques , here BPSK signal is used for finding cyclostationary spectrum and detection at low SNR Keywords— Cognitive Radio, Spectrum Sensing, Cyclostationary Feature Detection , Spectrum correlation function (SCF).