Peak-to-average power ratio inhibition method for orthogonal frequency division multiplexing (OFDM) signal
A technology of peak-to-average ratio suppression and orthogonal frequency division, applied in multi-frequency code systems, etc., can solve problems such as peak-to-average ratio, large number of iterations, and increase system computational complexity, achieve good performance, and reduce peak-to-average ratio PAPR Effect
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[0031] The embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. This embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation mode and specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.
[0032] Reference figure 1 The specific implementation steps of the present invention are as follows:
[0033] Step 1: Up-sample the signal modulated by orthogonal frequency division multiplexing OFDM to obtain the original OFDM signal x n , Where n=0,1,...,JN-1, J represents the upsampling factor, N represents the number of subcarriers included in the OFDM system, and JN represents the number of subcarriers included in the OFDM system after upsampling.
[0034] Step 2: Select the linear piecewise companding function f(x).
[0035] According to the basic idea of reducing the large signal an...
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