Document Type: Article
Department of Electrical Engineering, Shahid Bahonar University of Kerman, Kerman, P.O. Box 76169-133, Iran
Advanced Communications Research Institute, Sharif University of Technology, Tehran, Iran
OFDM is an eective multicarrier transmission technique with one primary disadvantage; it suers from high Peak-to-Average Power Ratio (PAPR). Although clipping and ltering is a simple and eective method for PAPR reduction, it makes in-band and out-of-band noise, which degrades the bit error rate performance and spectral eficiency. Publications on this subject show that clipped samples could be reconstructed at the receiver by using oversampled signal and bandwidth expansion. By building on published literature, this paper aims to achieve a low-complexity method. The proposed method has complexity order of O(L2) to solve linear system, where L indicates the number of clipped samples. Simulation results conrm that our proposed method leads to both a better biterror rate performance and a lower complexity than similar methods. These results also show that our method oers adequate performance, especially at low clipping ratios.