| 基于矩阵扩展方法的多速率线性离散码设计 |
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| 作者姓名： | 许莉 朱近康 邱玲 |
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| 作者单位： | 中国科学技术大学电子工程与信息科学系,合肥 230027 |
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| 基金项目： | Supported by International Science and Technology Cooperation Program (2008DFA12160) and National Science and Technology Significant Special project (2008ZX03003-004) |
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| 摘 要： | 在采用空时码的无线通信系统中,收发2端较差的路径会降低系统的性能.提出了多速率线性离散码(LDC),并对其进行了分析,给出了一种基于矩阵扩展方法的设计算法.多速率LDC是传统LDC和LDC-TAS的BER性能的折中.进而提出了一种性能优于传统LDC-A-TAS算法的多速率LDC自适应发送天线选择(A-TAS)算法.
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| 关 键 词： | 自适应发送天线选择 线性离散码 分集阶数 多速率线性离散码 |
| 收稿时间： | 2010-03-09 |
| 修稿时间： | 2010-07-05 |
Design of multi-rate linear dispersion codes based on extended matrix method |
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| Authors: | XU Li ZHU Jin-Kang QIU Ling |
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| Institution: | Department of Electronic Engineering and Information Science, University of Science and Technology of China, Hefei 230027, China |
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| Abstract: | The performance may be reduced by the path between transmission and reception in a bad state in wireless communication systems using space-time codes(STCs).An STC called multi-rate linear dispersion codes(LDC) is proposed and analyzed, and its BER performance is a good trade-off between classical LDC and LDC-TAS. A design of multi-rate LDC based on extended matrix method is given. Further, an algorithm of adaptive transmit antenna selection(A-TAS) with multi-rate LDC is proposed, and it has better performance than classical LDC-A-TAS. |
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| Keywords: | adaptive transmit antenna selection linear dispersion codes diversity gain multi-rate LDC |
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