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On the use of discrete cosine transforms for multicarrier communications

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Figure

Fig. 1. Block diagram of a transforms-based multicarrier system over a channel with additive noise
Fig. 2. Examples of symmetry types.
TABLE III
Fig. 5. Results obtained for DFT-MCM and DCT4e-MCM transmissions in a  high speed and multi-path mobile channel in the presence of frequency offset  (N = 128, QPSK, and  A / T = 0.02, 0.1)
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