Accessibility navigation

A new study on the power distribution of OFDMA, SC-FDMA and CP-CDMA signals

Varghese, G. and Zheng, F.-C. (2010) A new study on the power distribution of OFDMA, SC-FDMA and CP-CDMA signals. In: IEEE VTC 2010-S: Vehicular Technology, 16-19 May 2010, Taipei, Taiwan.

Full text not archived in this repository.

It is advisable to refer to the publisher's version if you intend to cite from this work. See Guidance on citing.

Official URL:


This paper explores a new technique to calculate and plot the distribution of instantaneous transmit envelope power of OFDMA and SC-FDMA signals from the equation of Probability Density Function (PDF) solved numerically. The Complementary Cumulative Distribution Function (CCDF) of Instantaneous Power to Average Power Ratio (IPAPR) is computed from the structure of the transmit system matrix. This helps intuitively understand the distribution of output signal power if the structure of the transmit system matrix and the constellation used are known. The distribution obtained for OFDMA signal matches complex normal distribution. The results indicate why the CCDF of IPAPR in case of SC-FDMA is better than OFDMA for a given constellation. Finally, with this method it is shown again that cyclic prefixed DS-CDMA system is one case with optimum IPAPR. The insight that this technique provides may be useful in designing area optimised digital and power efficient analogue modules.

Item Type:Conference or Workshop Item (Paper)
ID Code:18777
Uncontrolled Keywords:CP-CDMA signal , OFDMA signal , SC-FDMA signal , complementary cumulative distribution function , instantaneous power to average power ratio , power distribution , probability density function
Additional Information:DOI: 10.1109/VETECS.2010.5493926

University Staff: Request a correction | Centaur Editors: Update this record

Page navigation