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Article . 2017
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Performance Assessment Of Papr Reduction Techniques In Ofdm System

Authors: Purva Tiwari;

Performance Assessment Of Papr Reduction Techniques In Ofdm System

Abstract

To achieve better performance using multi carrier modulation we should make the subcarriers to be orthogonal to each other i.e. known as the Orthogonal Frequency Division Multiplexing (OFDM) technique. But the great drawback of the OFDM method is its high Peak to Average Power Ratio (PAPR). As we are using the linear power amplifier at the transmitter side so it’s operating point will go to the saturation region due to the high PAPR which leads to in-band distortion & out-band radiation. This can be evaded with growing the dynamic range of power amplifier which hints to high cost & high consumption of power at the base station.It is known that the PAPR reduction arrangements can be generallycategorized into two groups, i.e. distortion-less systems such as SLM & PTS & the pre-distortion systems such as clipping & companding. In this Paper, we demonstrate the performance of existing algorithms (PTS, SLM and Clipping) which has been compared using MALAB simulations. The proposed procedureexploitedstandard PTS, Clipping and SLM methods.We proved that by comparison of these PAPR reduction techniques, PTS perform much better than other standard methods like Amplitude clipping, selective mapping projected earlier with respect to CCDF.

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selected citations
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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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