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采用高阶QAM的LDPC编码OFDM系统 被引量:1

Low-Density Parity-Check Coded OFDM Systems with QAM
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摘要 正交频分复用(orthogonal frequency division multiplexing,OFDM)已成为多径环境下实现高速数据传输的主流技术之一,包括LDPC码在内的各种纠错编码技术被运用到其中以提高误码性能。文中提出了采用高阶QAM的LDPC编码OFDM(LDPC-COFDM)系统,在提高传输效率的同时取得了较好的编码增益。AWGN信道及频率选择性衰落信道下的仿真显示了该方案的良好性能。
机构地区 北京邮电大学
出处 《无线电工程》 2003年第12期1-3,51,共4页 Radio Engineering
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参考文献5

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同被引文献7

  • 1GALLAGER R G.Low density parity check codes[J].IRE Trans Info Theory,1962,IT(8):21-28.
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  • 5ZHANG Zhi,Qi Binghua,ZHANG Ping.Low-Density Parity-Check codes and high spectral efficiency modulations[J].IEEE PIMRC' 2003,2003.
  • 6BRESNAN R et al.Novel code consfruction and decoding techniques for LDPC codes[C].M Degree paper of M.Eng.Sc,Sept.2004,128-148.
  • 7FR'ED'ERIC GUILLOUD.Generic Architecture for LDPC Codes Decoding[Z].Paris:T'el'ecom Paris,2004.

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