Title page for etd-0823106-164713


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URN etd-0823106-164713
Author Hung-Yi Lu
Author's Email Address m933070008@student.nsysu.edu.tw
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Department Communications Engineering
Year 2005
Semester 2
Degree Master
Type of Document
Language zh-TW.Big5 Chinese
Title On the power allocation of transparent training schemes for the efficiency of power amplifier in OFDM systems
Date of Defense 2006-07-28
Page Count 48
Keyword
  • OFDM
  • PAPR
  • Abstract In this thesis, the superimposed training scheme is applied to the orthogonal frequency division multiplexing (OFDM) systems. To optimize power amplifier efficiency, the optimal value of pilot power allocation is derived to maximize data power. Peak-to-average power ratio (PAPR) is one of the major drawbacks for OFDM systems. A large PAPR will push the power amplifier into the saturation area, leading to nonlinear distortion, and reduce power efficiency. By using the superimposed training schemes, the system can not only improve the bandwidth efficiency, but also reduce the PAPR. In this thesis, the relation between PAPR and power efficiency is analyzed. In addition, the close form formula is derived for determining the pilot power allocation so that data power is maximized.
    Advisory Committee
  • Tsung-Hsien Liu - chair
  • Der-Feng Tseng - co-chair
  • Tsang-Yi Wang - co-chair
  • Yung-Fang Chen - co-chair
  • Chih-Peng Li - advisor
  • Files
  • etd-0823106-164713.pdf
  • indicate in-campus access immediately and off_campus access in a year
    Date of Submission 2006-08-23

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