Proposal of Simple PAPR Reduction Method for OFDM Signal by Using Dummy Sub-Carriers

Pisit BOONSRIMUANG; Kazuo MORI; Tawil PAUNGMA; Hideo KOBAYASHI

doi:10.1093/ietcom/e91-b.3.784

Regular Section

Proposal of Simple PAPR Reduction Method for OFDM Signal by Using Dummy Sub-Carriers

Pisit BOONSRIMUANG, Kazuo MORI, Tawil PAUNGMA, Hideo KOBAYASHI

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Keywords: OFDM, PAPR, DSI method, dummy sub-carriers, non-linear amplifier

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2008 Volume E91.B Issue 3 Pages 784-794

DOI https://doi.org/10.1093/ietcom/e91-b.3.784

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Abstract

One of the disadvantages of using OFDM is the larger peak to averaged power ratio (PAPR) in its time domain signal as compared with the conventional single carrier modulation method. The larger PAPR signal would course the fatal degradation of bit error rate (BER) performance due to the inter-modulation noise occurring in the non-linear amplifier. To overcome this problem, this paper proposes a simple PAPR reduction method by using dummy sub-carriers, which can achieve the better PAPR performance with less computational complexity than the conventional method. This paper presents various computer simulation results to verify the effectiveness of proposed method as comparing with the conventional method in the non-linear channel.

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