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Top2. Papr Reduction Techniques In Literature Review For Mimo-Ofdm Systems
For future communication systems, an amalgamation of multiple-input/ multiple-output with orthogonal frequency division multiplexing, indicated as MIMO-OFDM, is one of the most prominent candidates (Yang, 2005). As pointed previously, the main disadvantage of MIMO-OFDM is the high peak-to-average power ratio (PAPR) of the transmitted signals. We characterize and describe here some of the PAPR reduction methods available in the literature. The literature review presents some techniques for PAPR reduction of MIMO-OFDM systems by improving and adapting several PAPR reduction techniques.
Recently, different techniques have been suggested to reduce the PAPR for OFDM systems in the literature, for instance coding techniques (Davis & Jedwab, 1997), clipping (Li & Cimini, 1998), and partial transmit sequence (PTS) (Cimini & Sollenberger, 2000), constellation shaping (Laroia et al., 1994), and adaptive all-pass filters (Hong & Har, 2011). Meanwhile, several techniques were suggested to minimize the PAPR of MIMO-OFDM signals.