Amplitude limiting reserved sub carrier wave reduction PAPR method and system based on amplitude proportion factors
A technology for reserving sub-carriers and scaling factors, applied in multi-frequency code systems, electrical components, power management, etc., can solve the problems of increased times and high complexity of the virtual carrier reservation algorithm, so as to reduce the complexity and improve the frequency band. Utilization rate, the effect of reducing PAPR
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[0027] In order to make the above objectives, features and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0028] The idea of reserving subcarriers is: superimpose a frequency domain signal with a special structure and a frequency domain signal carrying useful information, so that the time domain signal obtained by the IFFT operation of the former can effectively reduce the corresponding signal of the latter. The peak value of the time domain signal, so as to achieve the purpose of reducing the PAPR of the system, without the need to transmit sideband information. Compared with other peak-to-average ratio reduction algorithms, it already has a lower complexity.
[0029] In the traditional reserved subcarrier algorithm, the frequency domain signal C with a special structure is selected according to the traversal search method. ...
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