Title page for etd-0113112-170004


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URN etd-0113112-170004
Author Shih-Lun Hsiao
Author's Email Address No Public.
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Department Electrical Engineering
Year 2011
Semester 1
Degree Master
Type of Document
Language English
Title A Resource Allocation Method Base on Cross-Entropy Algorithm with Guaranteed QoS in Multi-Cell OFDMA Systems
Date of Defense 2011-12-21
Page Count 57
Keyword
  • Orthogonal frequency division multiple access (OFDMA)
  • inter-cell interference
  • resource allocation
  • co-channel interference
  • Abstract In multi-cell downlink OFDMA radio network system, users in one cell would suffer from the inter-cell interference caused by frequency reuse, namely co-channel interference. For a practical system, the inter-cell interference seriously decreases the quality of communication, especially for cell-edge users. Therefore, some interference management techniques, such as resources allocation, beamforming…etc., will become an important issue in this system. Therefore, how to allocate resources to enhance cell-edge user performance and total system throughput is the major problem of our research.
    In this thesis, for management the inter-cell interference in multi-cell downlink OFDMA radio network system, a power allocation method based on the Cross-Entropy algorithm is proposed to find the sub-optimal solution and corresponding subcarriers allocation. In the system, it is considered that a sum-rate maximization problem while satisfying the target rate of both cell-edge users and cell-interior users. The simulation results show that the proposed method can effectively reduce interference between cells, and increases the transmission performance of cell-edge users and overall system throughput.
    Advisory Committee
  • Chih-Peng Li - chair
  • Tsang-Yi Wang - co-chair
  • Wan-Jen Huang - co-chair
  • Chia-Hung Yeh - advisor
  • Files
  • etd-0113112-170004.pdf
  • Indicate in-campus at 2 year and off-campus access at 2 year.
    Date of Submission 2012-01-13

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