Title page for etd-0813117-152004


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URN etd-0813117-152004
Author Yu-Cheng Yang
Author's Email Address p35017892@gmail.com
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Department Communications Engineering
Year 2017
Semester 1
Degree Master
Type of Document
Language zh-TW.Big5 Chinese
Title Joint Source-Channel Superposition Coding Design over Full-Duplex Amplify-and-Forward Multi-Relay Systems
Date of Defense 2017-09-12
Page Count 42
Keyword
  • amplify-and-forward
  • selective relay
  • Full-duplex multiple relays
  • joint source and channel coding
  • layered superposition coding
  • Abstract Deploying multiple relays in a network is able to extend the transmission coverage and to improve the link quality. However, owing to the limitation of hardware, the conventional cooperative system adopts the half-duplex relays to convey the signals to destination. Since the half-duplex (HD) relays transmit a signal with two phases, the spectral efficiency is degraded. Therefore, the full-duplex (FD) relays are recently developed to further increase the spectral efficiency. However, the FD relays suffer from self-interference (SI) due to transmit and receive at the relays concurrently. To alleviate the influence by SI, we jointly design a source and channel coding in an amplify-and-forward multiple relays where a multimedia source signals are encoded by layered superposition coding and the relay selection strategy is used. Specifically, with the knowledge of statistical channel information and the SI, we jointly select a FD relay and optimize the power and transmission rate for different encoded layers to minimize the mean squared error (MSE) of the reconstructed multimedia signals. Since the formulation of MSE is complicated in the optimization, the optimum design is not possible. We then derive an approximated MSE of a closed-form formulation to sophistically search a suboptimum solution. Simulations are conducted to verify the proposed design and the results show that the proposed layered superposition coding outperforms than the other layered multimedia transmission.
    Advisory Committee
  • Shou-Sheu Lin - chair
  • Chao-Kai Wen - co-chair
  • Tsang-yi Wang - co-chair
  • Wan-jen Huang - co-chair
  • Fan-shuo Tseng - advisor
  • Files
  • etd-0813117-152004.pdf
  • Indicate in-campus at 5 year and off-campus access at 5 year.
    Date of Submission 2017-09-13

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