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PAPR Reduction of OFDM Signal by Use of DSI Method with Time-Frequency Domain Swapping Algorithm
Pisit BOONSRIMUANG Katsuhiro NAITO Kazuo MORI Tawil PAUNGMA Hideo KOBAYASHI
Publication
IEICE TRANSACTIONS on Communications
Vol.E90-B
No.4
pp.1001-1006 Publication Date: 2007/04/01 Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e90-b.4.1001 Print ISSN: 0916-8516 Type of Manuscript: LETTER Category: Wireless Communication Technologies Keyword: OFDM, PAPR, dummy sub-carriers, non-linear amplifier,
Full Text: PDF(346KB)>>
Summary:
The main disadvantage of orthogonal frequency division multiplexing (OFDM) is the high time domain PAPR. The larger PAPR signal would fatally degrade BER performance in non-linear channels. This paper proposes an improved DSI method, which can achieve better PAPR and BER performances in the non-linear channel with less computation complexity than the conventional DSI method. The feature of proposed method is to employ the time-frequency domain swapping algorithm in the determination of frequency data for dummy sub-carriers. This paper presents various computer simulation results to verify the effectiveness of proposed DSI method.
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