| 非正交空时编码系统球形译码的性能 |
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| 引用本文： | 刘伟,邵珠雷.非正交空时编码系统球形译码的性能[J].河南科技大学学报(自然科学版),2010,31(1):38-41. |
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| 作者姓名： | 刘伟 邵珠雷 |
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| 作者单位： | 河南科技大学,电信工程学院,河南,洛阳,471003 |
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| 基金项目： | 河南省重点科技攻关项目(082102210064) |
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| 摘 要： | 针对无线衰落信道中多发射多接收天线传输系统中的非正交空时编码技术,提出一种低复杂性的球性译码方案。相对于非正交空时编码的最大似然译码,球形译码具有较低的复杂性和良好的性能。为了减少球形译码中信号空间搜索的计算量,采用动态调整信号空间搜索半径的处理方法。数值仿真结果表明:非正交空时码采用低复杂性的球形译码的性能接近其采用最大似然译码的性能。
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| 关 键 词： | 多输入多输出系统 非正交空时码 球形译码 最大似然译码 |
Performance of Sphere Decoding for NOSTBC System |
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| LIU Wei,SHAO Zhu-Lei.Performance of Sphere Decoding for NOSTBC System[J].Journal of Henan University of Science & Technology:Natural Science,2010,31(1):38-41. |
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| Authors: | LIU Wei SHAO Zhu-Lei |
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| Institution: | Electronic Information Engineering College/a>;Henan University of Science & Technology/a>;Luoyang 471003/a>;China |
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| Abstract: | A low complexity SD algorithm for NOSTBC of MIMO system over wireless fading channel is presented.Compared with the ML algorithm,the SD algorithm has lower complexity and better performance.In order to reduce the calculation complexity of searching signal space,the scheme of dynamically adjusting the search radius is adopted in SD algorithm.The simulation results demonstrate that the performance of the low complexity SD for NOSTBC is comparable with that of ML algorithm. |
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| Keywords: | MIMO system NOSTBC Sphere decoding ML decoding |
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