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Student Number 975203052
Author Sheng-Chung Kuo(郭勝中)
Author's Email Address No Public.
Statistics This thesis had been viewed 490 times. Download 164 times.
Department Communication Engineering
Year 2009
Semester 2
Degree Master
Type of Document Master's Thesis
Language English
Title Carrier Frequency Offset Estimation for OFDMA Uplink
Date of Defense 2010-07-08
Page Count 36
Keyword
  • CFO
  • Iterative Scheme
  • MUSIC
  • OFDMA
  • Abstract In OFDMA uplink systems, carrier frequency offset (CFO) would cause inter carrier interference (ICI) and multiple access interference (MAI), and would degrade the system performance. Blind CFO estimation algorithms have been proposed in lot of papers, and [1] proposed the MUSIC algorithm with excellent performance, but the MUSIC algorithm includes two operation that are hard for hardware to implement, to acquire the noise subspace and grid search procedure that depends on search resolution, besides, the wireless communication system transmission unit is frame, but the channel and CFO will change along the symbols, so if we estimate the CFO per symbol isn’t efficiency, so in this paper, we applied a fast data projection method (FDPM) to get the noise subspace and proposed a iterative MUSIC scheme to estimate the CFO over frame rapidly.
    Table of Content 論文摘要I
    AbstractII
    致謝III
    ContentsIV
    List of TablesVI
    Chapter 1 Introduction1
    Chapter 2 System Model6
    2.1 Interleaved Subcarrier Assignment Scheme6
    2.2 Transmitter7
    2.3 Wireless Channel9
    2.4 Receiver10
    Chapter 312
    BLIND CFO ESTIMATION ALGORITHM12
    3.1 Blind Parameter Estimation by MUSIC12
    3.2 Subspace Tracking Algorithm14
    3.3 Iterative Method17
    3.4 Proposed Iterative Estimation Scheme19
    3.5 Analysis23
    Chapter 4 Simulation Results25
    4.1 Simulation Models for OFDMA Uplink25
    4.2 Simulation Results28
    Chapter 5 Conclusions32
    Reference33
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    Advisor
  • Yung-Fang Chen(陳永芳)
  • Files
  • 975203052.pdf
  • approve in 3 years
    Date of Submission 2010-07-22

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