Joint design of network and channel coding for multiple-access relay channel (情報理論)

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概要

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• A systematic joint network and channel coding scheme over multiple-access relay channel is proposed. In the network with two sources, one relay and one destination, a network LDPC code which permits joint network and channel coding is designed. For the design, a generalized Gaussian approximation algorithm (GGAA) is derived to predict the performance of the network LDPC code. Based on GGAA, an optimization algorithm is developed to search the degree distribution of the network LDPC code. Simulations show that the system with the network LDPC code holds a performance gap less than 0.6dB from the threshold determined by GGAA at BER of 10e-5. A performance gain of about 0.3dB can be obtained, compared with the XOR network coding scheme.

• 2009-07-16

著者

• SONG Guanghui

  Dept. of Intelligent Information Eng. & Sci., Doshisha University

• LI Ying

  The State Key Lab. of ISN Xidian University

• CHENG Jun

  Dept. of Intelligent Information Eng. & Sci., Doshisha University

• WATANABE Yoichiro

  Dept. of Intelligent Information Eng. & Sci., Doshisha University

• Cheng Jun

  Dept. Of Intelligent Information Eng. & Sci Doshisha University

• Cheng Jun

  Doshisha University

• Song Guanghui

  Dept. Of Intelligent Information Eng. & Sci Doshisha University

• Watanabe Yoichiro

  Dept. Of Intelligent Information Eng. & Sci. Doshisha University

• Watanabe Yoichiro

  Doshisha University

• Watanabe Yoichiro

  Dept. Knowledge Eng. & Comp. Sci. Doshisha University

• Song Guanghui

  Dept. of Intelligent Infbrmation Eng. and Sci. Doshisha University Kyoto Japan

• Cheng Jun

  Dept. of Intelligent Infbrmation Eng. and Sci. Doshisha University Kyoto Japan

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