| Probability Density Function of Samples' Amplitude of ASSS OFDM Signal |
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Lei Wang, Dong-Weon Yoon, Sang-Kyu Park |
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Dept. of Electronics & Computer Engineering, Hanyang University |
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| Abstract |
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The adaptive symbol selection scheme(ASSS) is popular in reducing peak to average power ratio(PAPR) for orthogonal frequency division multiplexing(OFDM) signals. The probability density function(pdf) of the samples' amplitudes of the adaptively selected OFDM signal without over-sampling has been considered to be approximately equal to the Rayleigh pdf. In this paper, we derive a more precise pdf which shows the relationship between the probability distribution of the samples' amplitudes and the number of the candidate symbols for ASSS. Using the newly derived pdf in the theoretical analysis, more accurate calculation results can be obtained. |
| Key words:
Adaptive Symbol Selection Scheme, Clipping, PAPR Reduction, OFDM |
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