IEICE Electronics Express
Online ISSN : 1349-2543
ISSN-L : 1349-2543
PAPR reduction by pulse shaping using Nyquist linear combination pulses
Cesar A. Azurdia-MezaKyujin LeeKyesan Lee
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2012 Volume 9 Issue 19 Pages 1534-1541

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Abstract

Peak-to-average power ratio (PAPR) plays an important role in the design of wireless communication systems because a high PAPR decreases the efficiency of the power amplifier. A new family of Nyquist pulses was derived by applying a linear combination between two Nyquist pulses. The proposed Nyquist pulses are utilized for pulse shaping to reduce PAPR. The investigated pulses are characterized by a new design parameter (p), giving an additional degree of freedom to minimize PAPR for a given roll-off factor α. While keeping the same bandwidth, the frequency responses of the proposed filters are unique with different values of the parameter p. Simulations showed that the optimum proposed pulse shaping filters provide better performance in PAPR reduction compared to those of the RC filter and other existing filters evaluated in various systems.

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© 2012 by The Institute of Electronics, Information and Communication Engineers
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