The continuous-time peak-to-average power ratio of OFDM signals using complex modulation schemes |
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| Authors: | Wong K.D. Man-On Pun Poor H.V. |
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| Affiliation: | Department of Information Technology, Malaysia University of Science and Technology, Petaling Jaya, Selangor, Malaysia; |
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| Abstract: | Computing the continuous-time peak-to-averagepower ratio (PAPR) of OFDM signals is computationally challenging. The pioneering work by Tellambura applies only to OFDM signals using real-valued modulation schemes. In this paper, a practical technique for evaluating the continuous-time PAPR of OFDM signals using complex modulation is presented. Using the proposed scheme, it is confirmed that the four-time oversampled discrete-time PAPR is a good approximation of the continuous-time PAPR even for complex OFDM signals. Furthermore, the proposed scheme is employed to verify some existing analytical bounds on continuous PAPR in the literature. |
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