Correlative coding with clipping and filtering technique in OFDM systems

The major setbacks of orthogonal frequency multiplexing (OFDM) are its peak-to-average power ratio (PAPR) and intercarrier interference (ICI). The occurrence of these factors restricts its application. Here, the clipping and filtering PAPR reduction technique is being investigated to reduce the PAPR and out-of-band radiation simultaneously by implementing correlative coding. This paper focuses on the preliminary measurement study that was carried out. It is shown through simulation that the collaboration of these techniques gives a reasonable PAPR reduction and improves the out-of-band radiation.