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This work proposes an automatic modulation classification (AMC) algorithm to classify QPSK, OQPSK, π/4-QPSK and 8-PSK in the MIMO environment. The proposed method employs a zero forcing equalizer (ZFE) to estimate the transmitted signal. Two different cases are considered regarding the channel state information (CSI): (1) Perfect CSI and (2) Effect of erroneous channel estimation on modulation classification...
In this paper we propose a modified MSE based automatic blind modulation recognition (ABMR) algorithm for recognizing different rectangular QAM signals. The proposed method is robust to preprocessing errors like error in estimation of carrier frequency, synchronization and extraction of constellation from real band-pass signals. The performance of the proposed algorithm has been evaluated in the both...
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