PAPR Reduction Techniques in MIMO-OFDM Systems Using PSO and Advanced Modulation Schemes for Next-Generation Wireless Networks

The increasing need for rapid communication led to the development of two multicarrier regulating systems: Code Division Multiple Access (CDMA) and Orthogonal Frequency Division Multiplexing (OFDM). The OFDM is a type of frequency division multiplexing (FDM) plot used in complex multi carrier regulation. To transport information, many evenly spaced orthogonal sub-carriers are used. The data is split up into several equal bursts of streams for every sub-carrier. At a low image rate, each sub-carrier is adjusted using a traditional tweak plot (like QPSK) to maintain complete information rates that are comparable to traditional single carrier regulation methods at a similar capacity for transmission.