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EM-Based Iterative Receivers for OFDM and BICM/OFDM Systems in Doubly Selective Channels

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Academic year: 2021

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Fig. 1. BICM/OFDM systems.
Fig. 2. EM-based data detection method.
Fig. 3. (a) ML-EM receiver for OFDM systems; (b) an illustration for group detection.
Fig. 5. Initialization procedure for ML-EM and TURBO-EM receivers.
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