| 基于正交训练序列的MIMO-OFDM系统频率同步方法 |
| |
| 引用本文： | 罗丹,邝育军,刘艳,隆克平.基于正交训练序列的MIMO-OFDM系统频率同步方法[J].重庆邮电大学学报(自然科学版),2007,19(5):531-535. |
| |
| 作者姓名： | 罗丹 邝育军 刘艳 隆克平 |
| |
| 作者单位： | 1. 重庆邮电大学,光互联网与无线信息网络研究中心,重庆,400065
2. 电子科技大学,光互联网及移动信息网络研究中心,重庆,610054;重庆邮电大学,光互联网与无线信息网络研究中心,重庆,400065 |
| |
| 摘 要： | 提出了一种MIMO-OFDM系统中基于Walsh的同步训练序列结构。利用该结构可以在有效完成符号
同步的同时准确估计MIMO-OFDM系统中不同信道的载波频偏。在2×2的MIMO-OFDM系统下的仿真结果表
明，使用本训练序列可以获得较好的符号同步和载波频偏估计性能。
|
| 关 键 词： | MIMO-OFDM 正交训练序列 Walsh码 符号定时同步 频偏估计 |
| 文章编号： | 1673-825X（2007）05-0531-05 |
| 收稿时间： | 2006-12-30 |
| 修稿时间： | 2007-08-29 |
Frequency estimation method based on orthogonal training sequences for MIMO-OFDM systems |
| |
| LUO Dan,KUANG Yu-jun,LIU Yan,LONG Ke-ping.Frequency estimation method based on orthogonal training sequences for MIMO-OFDM systems[J].Journal of Chongqing University of Posts and Telecommunications,2007,19(5):531-535. |
| |
| Authors: | LUO Dan KUANG Yu-jun LIU Yan LONG Ke-ping |
| |
| Institution: | Special Research Center for Optical Internet and Wireless Information Networks, Chongqing University of Posts and Telecommunications, Chongqing 400065,P.R.China |
| |
| Abstract: | This paper proposes a new synchronization training sequence structure based on Walsh codes for MIMO-OFDM systems. By exploring the orthogonality of Walsh codes the receiver can differentiate each transmitting symbol and estimate the different channel frequency offsets respectively. The simulation results under 2×2 MIMO-OFDM system prove that by using the training sequences, the symbol timing and frequency offset estimation could achieve good performance. |
| |
| Keywords: | MIMO-OFDM orthogonal training sequences Walsh codes symbol timing frequency offset estimation |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《重庆邮电大学学报(自然科学版)》浏览原始摘要信息 |
| 点击此处可从《重庆邮电大学学报(自然科学版)》下载免费的PDF全文 |
