| 高阶相位调制的调制分集 |
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| 引用本文： | 丁义,袁超伟,黄韬.高阶相位调制的调制分集[J].无线电工程,2008,38(3):18-20. |
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| 作者姓名： | 丁义 袁超伟 黄韬 |
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| 作者单位： | 1. 北京邮电大学,通信网络综合技术研究所,北京100876;德州学院,山东,德州,253023
2. 北京邮电大学,通信网络综合技术研究所,北京100876 |
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| 摘 要： | 研究了高阶相位调制的调制分集,分析了调制分集对比特交织空时编码调制迭代译码(BI-STCM-ID)系统性能的影响,得到了引入调制分集后系统的解码比特度量的解析表达式。理论分析和仿真结果表明,调制分集改善了BI-STCM-ID系统在Rayleigh信道下的性能,同时,空时分集与调制分集的结合,对改善快衰落信道和慢衰落信道的性能具有相互补充的效果。
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| 关 键 词： | BICM 调制分集 旋转星座 |
| 文章编号： | 1003-3106(2008)03-0018-03 |
| 修稿时间： | 2007年10月22 |
Research on Modulation Diversity of Bit-interleaved Space-time Coded Modulation |
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| DING Yi,YUAN Chao-wei,HUANG Tao.Research on Modulation Diversity of Bit-interleaved Space-time Coded Modulation[J].Radio Engineering of China,2008,38(3):18-20. |
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| Authors: | DING Yi YUAN Chao-wei HUANG Tao |
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| Abstract: | The modulation diversity scheme was proposed in multilevel phase modul ation.The impact on BI-STCM-ID (bit-interleaved space-time coded modulation wit h iterative decoding) was analyzed and the expression of bit metric for decoding was presented.Theoretical analysis and simulation results show that modulation diversity can greatly improve the performance of BI-STCM-ID under Rayleigh fa di ng channels.Furthermore,modulation diversity combined with space-time diversi t y possesses the complementary effects on improving the performance of both fast and slow fading channels. |
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| Keywords: | BICM modulation diversity rotated constellati on |
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