NDLI: Selective Mapping Technique Using Sliding Weighting Factor in Frequency Domain

Content Provider	IEEE Xplore Digital Library
Author	Haesik Kim
Copyright Year	2013
Description	Author affiliation: VTT Tech. Res. Centre of Finland, Oulu, Finland (Haesik Kim)
Abstract	The orthogonal frequency-division multiplexing (OFDM) became the most important technology of the wireless broadband communications system because it achieves high data transmission and is robust to the frequency selective fading channel. However, the major disadvantage of this technology is a high peak-to-average power ratio (PAPR) because it causes signal distortion and high energy consumption. Thus, a new PAPR reduction technique is proposed in this paper. The proposed selective mapping technique (SLM) uses a phase rotation as well as a sliding amplitude weighting factor in frequency domain to generate statistically independent OFDM symbols group. Some subcarrier with high frequency produces many peak points in time domain so that it causes high PAPR. Thus, the basic principle of the proposed scheme is that some subcarrier with low frequency is given to a high amplitude weighting factor and some subcarrier with high frequency is given to a low amplitude weighting factor. In addition, the performance of the proposed SLM is evaluated with computer simulations.
Sponsorship	IEEE Vehicular Technol. Soc.
Starting Page	1
Ending Page	5
File Size	350333
Page Count	5
File Format	PDF
ISBN	9781467363372
ISSN	15502252
DOI	10.1109/VTCSpring.2013.6692747
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-06-02
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Peak to average power ratio Frequency-domain analysis Time-domain analysis Power amplifiers Bit error rate Computational modeling
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Electrical and Electronic Engineering Computer Science Applications

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