Title page for etd-0631117-133401


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URN etd-0631117-133401
Author Hsuan-Yu Chuang
Author's Email Address No Public.
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Department Communications Engineering
Year 2016
Semester 2
Degree Master
Type of Document
Language zh-TW.Big5 Chinese
Title Study on Implementation of Fast Beam Tracking Techniques
Date of Defense 2017-07-03
Page Count 73
Keyword
  • Compressed Sensing search
  • Exhaustive search
  • LTE
  • CFO
  • Beamforming
  • Beam Tracking
  • mmWave
  • Abstract With the rapid development of technology, more and more people rely on the network and multimedia. With the growing of the bandwidth demanding, the available carrier frequency below 6 GHz is limited. Because there still have large bandwidth in the high frequency band, millimeter-wave communication has become a popular candidate for the next generation mobile communication. However, in millimeter-wave transmission, the transmission signal wavelength is short, and the energy attenuates fast. Therefore, the large-scale antenna and beamforming are commonly used to the millimeter wave to improve the energy and achieve the efficiency of the transmission.
    In beamforming, the beam tracking technology is commonly used in which the base station search for the angle of arrival and transmit the data toward the angle. The beam tracking can improve the efficiency of transmission. The paper mainly focuses on the realization of the beam tracking technique by using the compressed sensing (CS) searching method. The CS searching method is faster than the traditional exhaustive method. However, the CS searching method is sensitive to the carrier frequency offset (CFO) which results from the inconsistency of the oscillators at both ends. Because CFO always exits in practical communication systems, the CS searching method is difficult to be use in practical applications. In this thesis, we present an effective way to estimate the CFO that incorporates with the CS searching method. To verify our design, we use Long Term Evolution (LTE) technology system as the basis for the development of beamforming and the CS beamforming technology in the 3.5 GHz band.
    Advisory Committee
  • Pang-An Ting - chair
  • Fan-Shuo Tseng - co-chair
  • Jung-Chieh Chen - co-chair
  • Chao-Kai Wen - advisor
  • Files
  • etd-0631117-133401.pdf
  • Indicate in-campus at 99 year and off-campus access at 99 year.
    Date of Submission 2017-08-01

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