Title page for etd-0803112-183534


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URN etd-0803112-183534
Author Jia-Chi Li
Author's Email Address m993070025@student.nsysu.edu.tw
Statistics This thesis had been viewed 5350 times. Download 863 times.
Department Communications Engineering
Year 2011
Semester 2
Degree Master
Type of Document
Language zh-TW.Big5 Chinese
Title Power Allocation Based on Limited Feedback in DF Cooperative and Cognitive Radio Networks
Date of Defense 2012-07-27
Page Count 40
Keyword
  • power allocation
  • cognitive radio network
  • cooperative communication
  • limited feedback
  • Abstract This thesis investigates cooperative communication under the framework of cognitive
    radio network, which consists of primary and secondary users(PU & SU). The
    cooperative and cognitive radio network (CCR) adopts overlay dynamic spectrum
    access, That is, the SU simultaneously assists PU’s transmission and transmits its own
    message using spectrum shared by primary user. The secondary user adopts
    decode-and-forward (DF) relaying to assist the primary user in transmitting message.
    With secondary user’s assistance, the cooperative system can be treat as an equivalent
    multiple input single output (MISO) system to attain the spatial diversity of the primary
    user. The virtual MISO system can reduce the outage probability and enhance the
    transmission reliability. Under the requirement on primary user's transmission quality,
    secondary user transmits both user’s signals simultaneously, so that the secondary
    acquires authority to access spectrum. Based on limited feedback regarding SNR of link
    between primary transmitter and receiver, secondary user allocates transmission power
    of primary signal and secondary signal to increase throughput and spectrum efficiency
    of SU subject to satisfying PU’s outage constraint.
    Advisory Committee
  • Tsang-Yi Wang - chair
  • Fan-Shuo Tseng - co-chair
  • Chao-Kai Wen - co-chair
  • Kuei-Chiang Lai - co-chair
  • Wan-Jen Huang - advisor
  • Files
  • etd-0803112-183534.pdf
  • Indicate in-campus at 0 year and off-campus access at 1 year.
    Date of Submission 2012-08-03

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