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Real-time Modulation Classification Based On Maximum Likelihood

delete2008-11-01
delete63
PRE
AI
W
Wei Su *
J
Jefferson L. Xu
M
MengChu Zhou
DOI:10.1109/LCOMM.2008.081107delete
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Abstract

Abstract

En 中文
This paper describes a likelihood test based modulation classification method for identifying the modulation scheme of a software-defined radio (SDR) in real-time without pilot symbols between transmitters and receivers. Unlike the prior art, the paper converts an unknown signal symbol to an address of the look-up table (LUT), loads the pre-calculated values of the test functions for the likelihood ratio test, and produces the estimated modulation scheme in real-time. The statistical performance of the LUT based classifier is studied. Simulation results are presented to confirm the theoretical analysis.
Keywords:
Average likelihood ratio test
modulation classification
software-defined radio

Journal

IEEE Communications Letters cover
IEEE Communications Letters
IF:
4.4
Papers:
1.3W
Citations:
2.2W

Organization

N
New Jersey Institute of Technology
Scholars:
4.1K
Papers: 4.5K
Citations: 4.6K