SLM-based PAPR reduction method using partial data circulation and side information insertion in OFDM systems

被引：15
|
作者：
Wen, Jyh-Horng [1 ]
Lee, Shu-Hong [2 ,3 ]
Cheng, Chu-Hsuan [4 ]
机构：
[1] Tunghai Univ, Dept Elect Engn, Taichung 40704, Taiwan
[2] Natl Chung Cheng Univ, Inst Elect Engn, Chiayi, Taiwan
[3] Chien Kuo Technol Univ, Dept Elect Engn, Changhua 500, Taiwan
[4] Natl Chi Nan Univ, Inst Commun Engn, Puli, Taiwan
来源：
INTERNATIONAL JOURNAL OF COMMUNICATION SYSTEMS | 2009年 / 22卷 / 01期
关键词：
OFDM; PAPR; selected mapping; partial data circulation; dummy sequence insertion; AVERAGE POWER RATIO; LOW-COMPLEXITY;
D O I：
10.1002/dac.960
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, two selected mapping (SLM)-based schemes are proposed to reduce (lie peak-to-average power ratio (PAPR) in the orthogonal frequency division multiplexing (OFDM) systems. One is SLM-based partial data circulation (PDC) scheme. The other is SLM-based PDC with hamming coded side information (SI) scheme. In the PDC scheme, the partial samples within the data sequence are scrambled by circularly shifting to obtain a set of candidate sequences and, then, each sequence is combined with the corresponding SI to form the candidate OFDM symbol. With the selection of the candidate OFDM symbols with the lowest PAPR. the PAPR of the transmitted signal Could be greatly reduced. In the other scheme. hamming code is used to protect the SI to improve the system performance. Simulation results show that the proposed method could reduce PAPR and it has a better bandwidth efficiency and less modules of inverse fast Fourier transform than that with the SLM-based dummy sequence insertion scheme. Copyright (c) 2008 John Wiley & Sons, Ltd.
引用
收藏
页码：87 / 100
页数：14
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