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Adaptive SLM and Side Information Insertion Method  

정락규 (충북대학교 전자공학과 및 컴퓨터정보통신연구소)
유흥균 (충북대학교 전자공학과 및 컴퓨터정보통신연구소)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.14, no.3, 2003 , pp. 276-282 More about this Journal
Abstract
OFDM is effective for the high speed data transmission. However, the nonlinear distortion is a serious problem because of the high PAPR due to many subcarriers. The conventional SLM selects the OFDM signal with the lowest PAPR. In this method, OFDM data can be correctly recovered only if the side information about the phase sequence is transmitted to receiver. This paper proposes a new method of side information insertion into the conventional SLM and reduces the computational complexity by adaptive method. Performances are compared in case that three kinds of phase sequences are used for phase rotation factor. The adaptive SLM method has the same PAPR reduction as the conventional SLM method. The required BER can be guaranteed by the proposed method. When subcarrier number N=32, computational complexity is reduced to 48 %, 72 % and 51 % for the branch number U=4, 8 and 16, respectively.
Keywords
OFDM; PAPR; SLM; Adaptive Threshold And Side Information;
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  • Reference
1 Multicarrier Modulation with Low Peak-To-Average Power Ratio /
[ M. Friese ] / IEE Electronics Letters   ScienceOn
2 Block Coding Scheme for Reduction of Peak To Mean Envelope Power Ratio of Multicarrier Transmission Scheme /
[ A. Jones;T. Wilkinson;S. Barton ] / IEE Electronics Letters   ScienceOn
3 A Novel Peak Power Reduction Scheme for OFDM /
[ S. H. Muller;J. B. Huber ] / Proc. of PIMRC '97
4 Reducing the Peak-To-Average Power Ratio of Multicarrier Modulation by Selective Mapping /
[ R. W. Bauml;R. F. H. Fischer;J. B. Huber ] / IEE Elec. Letts.   ScienceOn
5 Multicarrier COFDM Scheme in High Bit Radio Local Area Networks /
[ M. Aldinger ] / Proc. of PIMRC '94
6 Principles of Modulation and Channel Coding for Digital Broadcasting for Mobile Receivers /
[ M. Alard;R. Lassalle ] / EBU Technical Review
7 Reduction of Peak To Mean Ratio of Multicarrier Modulation using Cyclic Coding /
[ D. Wulich ] / IEE Electronics Letters   ScienceOn
8 Effects of Clipping and Filtering on The Performance of OFDM /
[ X. Li;L. J. Cimini, Jr. ] / IEEE Commun. Letts.   ScienceOn
9 The Use of Interleaving to Reduce The Peak-To-Average Power Ratio of an OFDM Signal /
[ A. D. S. Jayalath;C. Tellambura ] / IEEE GLOBECOM '00