Side Information Inserted Pilot Tone Transmission for PAPR Reduction in OFDM

Lei WANG  Dongweon YOON  Sang Kyu PARK  

Publication
IEICE TRANSACTIONS on Communications   Vol.E92-B   No.2   pp.687-690
Publication Date: 2009/02/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E92.B.687
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
Keyword: 
PAPR,  SLM,  side information,  OFDM,  

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Summary: 
In order to reduce the peak-to-average power ratio (PAPR) of orthogonal frequency division multiplexing (OFDM) signals over fading channels, the selected mapping (SLM) scheme and channel estimation technique can be used. Because of the side information of SLM, however, the data rate decreases in the conventional transmission method. In this letter, to overcome this impairment, we propose a technique which transmits side information by using pilot tones. Numerical analysis and computer simulations show that this method can maintain the PAPR reduction ability of SLM while improving error performance.