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基于LDPC信道编码的多天线系统研究

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摘要 本文讨论了多天线系统中的空时编码技术以及空-时编码与信道编码的结合,重点介绍了基于低密度奇偶校验码(LDPC)和正交空-时分组码(OSTBC)的多天线系统。为进一步改善系统性能,充分利用信道编码引入的符号之间的相关性,在接收端采用检测器和解码器间的迭代译码。仿真结果表明,LDPC信道编码可大大改善基于OSTBC的多天线系统的性能,采用迭代译码可使系统性能进一步改善。
作者 李倩
出处 《通信与信息技术》 2005年第4期61-66,共6页 Communication & Information Technology
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