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

Pisit BOONSRIMUANG  Kazuo MORI  Tawil PAUNGMA  Hideo KOBAYASHI  

Publication
IEICE TRANSACTIONS on Communications   Vol.E91-B   No.3   pp.784-794
Publication Date: 2008/03/01
Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e91-b.3.784
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Wireless Communication Technologies
Keyword: 
OFDM,  PAPR,  DSI method,  dummy sub-carriers,  non-linear amplifier,  

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Summary: 
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.