New results on a two-stage novel modulation classification technique for cognitive radio applications

Okhtay Azarmanesh, Sven G. Bilen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Scopus citations


We report here on new results for a novel modulation classification technique designed for a real-time cognitive radio (CR) system. The goal is a technique that is robust and efficient with a processing time overhead low enough to allow a CR to maintain its real-time operating objectives. We investigated classification of linear single-carrier modulations as well as multi-carrier modulations. The method uses the waveform's I-Q diagrams, and by employing clustering algorithms on them, determines the type of modulation being transmitted. For classifying single-/multi-carrier modulations, we further study existing methods to find and modify the appropriate Gaussianity test to distinguish between single-carrier signals and multi-carrier signals. This new modulation classification method is capable of determining the type of modulation scheme among various PAM, QAM, and PSK modulations. Its performance in classifying these modulations is comparable to the best available published classifiers. It is also capable of extracting features of OFDM modulations and can be further expanded to include any new modulation scheme with unique I-Q diagram.

Original languageEnglish (US)
Title of host publication2010 Military Communications Conference, MILCOM 2010
Number of pages6
StatePublished - 2011
Event2011 IEEE Military Communications Conference, MILCOM 2011 - Baltimore, MD, United States
Duration: Nov 7 2011Nov 10 2011

Publication series

NameProceedings - IEEE Military Communications Conference MILCOM


Other2011 IEEE Military Communications Conference, MILCOM 2011
Country/TerritoryUnited States
CityBaltimore, MD

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering


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