| 低复杂度的分组检测空时接收机 |
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| 引用本文： | 王中鹏,吴伟陵.低复杂度的分组检测空时接收机[J].电子与信息学报,2005,27(10):1616-1619. |
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| 作者姓名： | 王中鹏 吴伟陵 |
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| 作者单位： | 1. 浙江科技学院计算机系,杭州,310012;北京邮电大学信息工程学院,北京,100876
2. 北京邮电大学信息工程学院,北京,100876 |
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| 基金项目： | 国家科技攻关项目;中国科学院资助项目 |
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| 摘 要： | V-BLAST接收机是提高无线通信系统传输数率的有效技术，但由于该算法存在大量的求伪逆、迫零和排序，算法的复杂度高，限制了它在实际中的应用；线性迫零(ZF)接收机和最小均方误差(MMSE)接收机复杂度低，但性能差。该文提出了一种分组检测空时接收机，组内采用串行干扰抵消接收，与V-BLAST接收机相比，降低了算法的复杂度。仿真结果表明:所提出的基于MMSE准则下的分组检测空时接收机的性能明显好于基于迫零准则的 V-BLAST接收机。
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| 关 键 词： | 无线通信 多输入多输出 分层空时编码 V-BLAST |
| 文章编号： | 1009-5896(2005)10-1616-04 |
| 收稿时间： | 2004-04-28 |
| 修稿时间： | 2005-01-06 |
The Low Complexity of Group Detecting Layered Space-Time Receiver |
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| Wang Zhong-peng,Wu Wei-ling.The Low Complexity of Group Detecting Layered Space-Time Receiver[J].Journal of Electronics & Information Technology,2005,27(10):1616-1619. |
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| Authors: | Wang Zhong-peng Wu Wei-ling |
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| Affiliation: | Department of computer, Zhejiang university of science and technology, Hangzhou 310012, China;Information Engineering School, Beijing University of Post and Telecommunications, Beijiing 100876, China |
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| Abstract: | V-BLAST receiver is effective technique in achieving high data rate in wireless communications. However, the complexity of V-BLAST is very high because much time must be consumed in performing linear nulling, successive interference canceling and sorting, and the application of V-BLAST is limited. The complexity of the ZF receiver and MMSE receiver is low, but performance is worse than V-BLAST. In this paper, a new layered space-time receiver is proposed using two stage successive interference canceling, and the complexity of new scheme is very low compared with the V-BLAST. The simulation results indicate that the performance of the proposed receiver based on MMSE is outperforms ZF V-BLAST receiver. |
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| Keywords: | V-BLAST |
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