Selective mapping technique using sliding weighting factor in frequency domain

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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
Original languageEnglish
Title of host publicationProceedings
Subtitle of host publicationIEEE Vehicular Technology Conference
PublisherIEEE Institute of Electrical and Electronic Engineers
ISBN (Print)978-146736337-2
DOIs
Publication statusPublished - 2013
MoE publication typeA4 Article in a conference publication
EventIEEE 77th Vehicular Technology Conference, VTC Spring 2013 - Dresden, Germany
Duration: 2 Jun 20135 Jun 2013
Conference number: 77

Conference

ConferenceIEEE 77th Vehicular Technology Conference, VTC Spring 2013
Abbreviated titleVTC Spring 2013
CountryGermany
CityDresden
Period2/06/135/06/13

Keywords

  • Etc
  • FFT
  • OFDM
  • PAPR
  • Selective Mapping Technique
  • wireless communication

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    Kim, H. (2013). Selective mapping technique using sliding weighting factor in frequency domain. In Proceedings: IEEE Vehicular Technology Conference [6692747] IEEE Institute of Electrical and Electronic Engineers. https://doi.org/10.1109/VTCSpring.2013.6692747