Distribution of the PAPR for Real-Valued OFDM Signals
نویسندگان
چکیده
In the literature, the bounds of the peak to average power ratio (PAPR) are generalized to both complex-valued and real-valued orthogonal frequency division multiplexing (OFDM) signals. In fact, these bounds are accurately bounding the PAPR distribution of complex-valued OFDM signals only. In this paper, we derive accurate PAPR bounds of real-valued OFDM signals and show that bounds of complex-valued OFDM signals cannot be generalized to the real-valued OFDM signals. Our analysis is based on the fact that a real-valued OFDM signal consists of a single random variable. Also a relation between the PAPR and number of subcarriers is established for both real-valued and complex-valued OFDM signals
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