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EURASIP Journal on Wireless Communications and Networking
Figure 3 | EURASIP Journal on Wireless Communications and Networking

Figure 3

From: I-Q diagram utilization in a novel modulation classification technique for cognitive radio applications

Figure 3

Initialization examples for k -means and k -center. The red dots show the center of each cluster and represent the output of the algorithm. (a) Initialization example for k-means with and without using k-center. The simulated signal has 256 samples with SNR = 5 dB in (a). (b) Initialization example for k-center with and without using k-means. The simulated signal has 256 samples with SNR = 5 dB in (b).

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