BLIND CLASSIFICATION OF AMPLITUDE-PHASE MODULATED SIGNALS BASED ON MAXIMUM LIKELIHOOD APPROACH

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MESKARPOUR AMIRI HAMID; ZAHABI MOHAMMAD REZA; EBRAHIMZADEH ATAOLLAH

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Paper Information

Journal: TABRIZ JOURNAL OF ELECTRICAL ENGINEERING Year:2016 | Volume:46 | Issue:1 (75) Page(s): 333-342

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Information Journal Paper

Title

BLIND CLASSIFICATION OF AMPLITUDE-PHASE MODULATED SIGNALS BASED ON MAXIMUM LIKELIHOOD APPROACH

Author(s)

MESKARPOUR AMIRI HAMID | ZAHABI MOHAMMAD REZA | EBRAHIMZADEH ATAOLLAH | Issue Writer Certificate

Keywords

BLIND MODULATION CLASSIFICATIONQ2

BLIND ESTIMATORQ2

PULSE SHAPING ESTIMATIONQ2

TIME OFFSET ESTIMATIONQ2

Abstract

The automatic recognition of the modulation format of a detected signal is a major task of an intelligent receiver. This task becomes more difficult when the receiver has no information about the transmitted signal or the channel. At first, the maximum likelihood (ML) classifier for classifying phase-amplitude modulated schemes in coherent environment is presented. It is well known that the ML classifier requires a priori knowledge of the incoming signal and channel (including Amplitude, timing information, noise power and the roll-off factor of the pulse shaping filter). To relax this requirement, we introduce a novel estimator to estimate the parameters required by ML classifier which is blind to the modulation scheme of the received signal, and this gives rise to a new completely blind modulation classifier for digital amplitude-phase modulated signals over fading channels. Results are presented from simulations in terms of correct detection probability versus SNR for the class of BPSK, QPSK, 8-PSK, 16-QAM and 64-QAM modulation schemes. The results show that the performance of this classifier is very close to the ideal classifier with perfect estimates.

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APA: Copy

MESKARPOUR, AMIRI HAMID, ZAHABI, MOHAMMAD REZA, & EBRAHIMZADEH, ATAOLLAH. (2016). BLIND CLASSIFICATION OF AMPLITUDE-PHASE MODULATED SIGNALS BASED ON MAXIMUM LIKELIHOOD APPROACH. TABRIZ JOURNAL OF ELECTRICAL ENGINEERING, 46(1 (75)), 333-342. SID. https://sid.ir/paper/256598/en

Vancouver: Copy

MESKARPOUR AMIRI HAMID, ZAHABI MOHAMMAD REZA, EBRAHIMZADEH ATAOLLAH. BLIND CLASSIFICATION OF AMPLITUDE-PHASE MODULATED SIGNALS BASED ON MAXIMUM LIKELIHOOD APPROACH. TABRIZ JOURNAL OF ELECTRICAL ENGINEERING[Internet]. 2016;46(1 (75)):333-342. Available from: https://sid.ir/paper/256598/en

IEEE: Copy

AMIRI HAMID MESKARPOUR, MOHAMMAD REZA ZAHABI, and ATAOLLAH EBRAHIMZADEH, “BLIND CLASSIFICATION OF AMPLITUDE-PHASE MODULATED SIGNALS BASED ON MAXIMUM LIKELIHOOD APPROACH,” TABRIZ JOURNAL OF ELECTRICAL ENGINEERING, vol. 46, no. 1 (75), pp. 333–342, 2016, [Online]. Available: https://sid.ir/paper/256598/en

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