ELECTRONICS LETTERS 28th May 1998 Vol
نویسنده
چکیده
In this paper, we propose a novel scheme for reduction of the peak-to-average power ratio (PAPR) of Orthogonal Frequency Division Multiplexing (OFDM) transmitted signal by using Discrete Fourier Transform (DFT) as the preprocessing between data mapper and adding of pilot. The preprocessing is designed to decrease the correlation of original QAM constellation Simulation results show that PAPR can be reduced about 4.3db at the symbol-clip probability of for 64-carriers QPSK without any side information. With a little extra computation, the proposed approach effectively reduce the PAPR for commercial OFDM systems 3 10
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تاریخ انتشار 2005