Removing Cyclostationary Properties in a Chaos-Based Communication System
2011
Chaotic signals are used in digital communications primarily in a bid to increase the security of transmissions. Moreover, second-order cyclostationary characteristics can easily be identified in chaotic signals used in communication systems. The detection of the cyclostationary properties in the transmitted signal decreases the security level for such systems. In this paper, we focus our attention on the eradication of cyclostationary properties present in chaotic signals, and to that end, we introduce a new method based on symbol period randomization to eliminate the spectral lines corresponding to the multiples of the baud rates. Finally, we compare our proposed method with another existing method in order to show the efficiency of ours in eliminating the cyclostationary properties.
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