| 一种改进的准正交空时分组码译码方案 |
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| 引用本文： | 肖丽萍,代晓雪.一种改进的准正交空时分组码译码方案[J].重庆邮电大学学报(自然科学版),2011,23(5):562-564. |
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| 作者姓名： | 肖丽萍 代晓雪 |
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| 作者单位： | 燕山大学 信息与工程学院，河北 秦皇岛 066004 |
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| 摘 要： | 针对传统全速率准正交空时分组码(quasi-orthogonal space-time block code,QO-STBC)译码复杂度高的问题,提出一种改进的准正交空时分组码译码方案.该方案通过在接收端乘以信道矩阵的共轭转置及Givens旋转矩阵,消除检测矩阵部分干扰项,使检测矩阵三角化.和传统的准正交空时分组码最大...
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| 关 键 词： | 准正交空时编码 最大似然 Givens旋转 |
| 收稿时间： | 2010/5/25 0:00:00 |
An improved decoding scheme of QO-STBC |
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| XIAO Li-ping,DAI Xiao-xue.An improved decoding scheme of QO-STBC[J].Journal of Chongqing University of Posts and Telecommunications,2011,23(5):562-564. |
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| Authors: | XIAO Li-ping DAI Xiao-xue |
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| Abstract: | As to the high decoding complexity of the conventional full rate quasi-orthogonal space-time block code (QO-STBC), an improved scheme was proposed in this paper. In the receiver, we apply Hermitian transposition of channel matrix and Givens rotation to eliminate part of interference terms, and achieve a triangle detection matrix. Compared to conventional QO-STBC, the maximum likelihood (ML) metric is maximally simplified, thereby decoding complexity is minimized. Theoretical analysis and simulation results show that the improved scheme ensures the BER of the conventional ML decoding, and reduces the decoding complexity greatly. |
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| Keywords: | quasi-orthogonal space time code maximum likelihood Givens rotation |
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