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Software-Defined Radio Equipped With Rapid Modulation Recognition

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3 Author(s)
Xu, J.L. ; New Jersey Inst. of Technol., Newark, NJ, USA ; Wei Su ; MengChu Zhou

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.

Published in:

Vehicular Technology, IEEE Transactions on  (Volume:59 ,  Issue: 4 )

Date of Publication:

May 2010

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