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Software-Defined Radio Equipped With Rapid Modulation Recognition
Ist Teil von
IEEE transactions on vehicular technology, 2010-05, Vol.59 (4), p.1659-1667
Ort / Verlag
New York: IEEE
Erscheinungsjahr
2010
Quelle
IEEE Explore
Beschreibungen/Notizen
Automatic modulation recognition (AMR)-based software-defined radio (SDR) is a research challenge in developing third-generation (3G) and fourth-generation (4G) wireless communications with adaptive modulation capability. However, the existing AMR technology does not satisfy the seamless demodulation requirement of the SDR. A novel design of the AMR method with reduced computational complexity and fast processing speed is needed. This paper describes a discrete likelihood-ratio test (DLRT)-based rapid-estimation approach to identifying the modulation schemes blindly for uninterrupted data demodulation in real time. The statistical performance of the fast AMR associated with its implementation using the SDR is presented.