Study of Peak-to-Average Power Ratio Reduction Techniques for OFDM Signals
نویسنده
چکیده
Orthogonal frequency division multiplexing has drawn explosive attention as a new type of high data rate transmission scheme for wireless communication system. The main advantage of OFDM system are spectral bandwidth efficiency and robustness against frequency selective fading or narrowband interference etc. However a critical drawback of OFDM is high peak-to-average-power ratio (PAPR), which results in significant inter modulation, intercarrier interference (ICI), bit error rate (BER) performance degradation and undesirable out of band radiation when an OFDM signal passes through nonlinear devices such as high power amplifier (HPA). This paper reviews the conventional PAPR reduction techniques for OFDM (Orthogonal frequency division multiplexing) signals.
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