| 基于LCP预编码的VBLAST-OFDM系统 |
| |
| 引用本文： | 屈代明,朱光喜,桂波.基于LCP预编码的VBLAST-OFDM系统[J].华中科技大学学报(自然科学版),2004,32(4):83-86. |
| |
| 作者姓名： | 屈代明 朱光喜 桂波 |
| |
| 作者单位： | 华中科技大学电子与信息工程系,湖北,武汉,430074;华中科技大学电子与信息工程系,湖北,武汉,430074;华中科技大学电子与信息工程系,湖北,武汉,430074 |
| |
| 摘 要： | 提出基于线性星座预编码(LCP预编码)的VBLAST-OFDM系统，该系统通过在OFDM子载波信道间进行LCP预编码来获得频率分集增益，适用于宽带无线通信。同时提出一种VBLAST-LCP联合解码器，该解码器结合了经典的VBLAST解码方法和基于最大似然准则(ML)的LCP解码．仿真表明相比与未编码的VBLAST-OFDM系统，VBLAST-OFDM-LCP系统至少能提供8．5dB的增益。VBLAST-OFDM-LCP系统的编码是无冗余的，而且编码解码结构比较简单，有很强的应用价值。
|
| 关 键 词： | 宽带无线通信 空时传输 VBLAST LCP预编码 OFDM |
| 文章编号： | 1671-4512(2004)04-0083-04 |
| 修稿时间： | 2003年7月3日 |
The system for VBLAST-OFDM based on LCP precoding |
| |
| Qu Daiming Zhu Guangxi Gui Bo Doctoral Candidate., Dept. of Electron & Info. Eng.,Huazhong Univ. of Sci. & Tech.,Wuhan ,China..The system for VBLAST-OFDM based on LCP precoding[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,2004,32(4):83-86. |
| |
| Authors: | Qu Daiming Zhu Guangxi Gui Bo Doctoral Candidate Dept of Electron & Info Eng Huazhong Univ of Sci & Tech Wuhan China |
| |
| Institution: | Qu Daiming Zhu Guangxi Gui Bo Doctoral Candidate., Dept. of Electron & Info. Eng.,Huazhong Univ. of Sci. & Tech.,Wuhan 430074,China. |
| |
| Abstract: | The system for VBLAST-OFDM based on LCP precoding was proposed for wideband wireless communications. Frequency diversity was obtained by LCP precoding over OFDM sub-carriers. A combined VBLAST-LCP decoder was proposed. It combined successive cancellation of classical VBLAST with Maximum Likelihood decoding of LCP precoding. The simulation result showed that VBLAST-OFDM-LCP can gain at least 8.5 dB compared with VBLAST-OFDM. |
| |
| Keywords: | wideband wireless communications space-time transmission VBLAST LCP precoding OFDM |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
