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An Overview of Peak-to-Average Power Ratio Reduction Schemes for OFDM Signals  

Lim, Dae-Woon (Department of the Information and Communication Engineering, Dongguk University)
Heo, Seok-Joong (Department of Electrical Engineering and Computer SCience, Seoul National University, INMC)
No, Jong-Seon (Department of Electrical Engineering and Computer SCience, Seoul National University, INMC)
Publication Information
Journal of Communications and Networks / v.11, no.3, 2009 , pp. 229-239 More about this Journal
Abstract
Orthogonal frequency division multiplexing (OFDM) has been adopted as a standard for various high data rate wireless communication systems due to the spectral bandwidth efficiency, robustness to frequency selective fading channels, etc. However, implementation of the OFDM system entails several difficulties. One of the major drawbacks is the high peak-to-average power ratio (PAPR), which results in intercarrier interference, high out-of-band radiation, and bit error rate performance degradation, mainly due to the nonlinearity of the high power amplifier. This paper reviews the conventional PAPR reduction schemes and their modifications for achieving the low computational complexity required for practical implementation in wireless communication systems.
Keywords
Orthogonal frequency division multiplexing (OFDM); partial transmit sequences (PTS); peak-to-average power ratio (PAPR); selected mapping (SLM); tone reservation (TR);
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