| 一种MIMO-OFDM系统的导频设计及信道估计方法 |
| |
| 引用本文： | 王轶,陶小峰,张平.一种MIMO-OFDM系统的导频设计及信道估计方法[J].北京邮电大学学报,2007,30(3):45-49. |
| |
| 作者姓名： | 王轶 陶小峰 张平 |
| |
| 作者单位： | 北京邮电大学,泛网无线通信教育部重点实验室,北京,100876;北京邮电大学,泛网无线通信教育部重点实验室,北京,100876;北京邮电大学,泛网无线通信教育部重点实验室,北京,100876 |
| |
| 基金项目： | 国家自然科学基金，教育部跨世纪优秀人才培养计划 |
| |
| 摘 要： | 针对多输入多输出正交频分复用系统，提出了一种利用空频分组码码字正交特性的导频设计方法，并提出了基于该导频的低复杂度信道估计算法. 推导了该信道估计方案的均方误差，并评估了复杂度计算公式. 计算机仿真验证了此算法可以以较低的复杂度获得近似最小均方误差（MMSE）信道估计算法的均方误差性能及误码率性能。
|
| 关 键 词： | 格式化导频设计 正交频分复用 空频分组码 |
| 文章编号： | 1007-5321（2007）03-0045-05 |
| 收稿时间： | 2006-06-01 |
| 修稿时间： | 2006-06-06 |
Scheme of Pilot Design and Channel Estimation in MIMO-OFDM System |
| |
| WANG Yi,TAO Xiao-feng,ZHANG Ping.Scheme of Pilot Design and Channel Estimation in MIMO-OFDM System[J].Journal of Beijing University of Posts and Telecommunications,2007,30(3):45-49. |
| |
| Authors: | WANG Yi TAO Xiao-feng ZHANG Ping |
| |
| Affiliation: | Wireless Tech and Innovation Institute of Beijing Univ. of Posts and Telecom, Key Laboratory of Ubiquitous Wireless Communication, Ministry of Education, Beijing, China |
| |
| Abstract: | Orthogonal frequency-division multiplexing(OFDM) combined with multiple-input multiple-output(MIMO) is an efficient technique to improve wireless communication performance and capacity.To improve the performance of MIMO-OFDM system,a novel pilot sequence taking advantage of the orthogonality of space frequency block code(SFBC) as well as the corresponding simple channel estimation algorithm,is presented in this paper.The theoretic mean square error(MSE) of the algorithm is deduced and the complexity is also given.The performance of the proposed scheme is verified by simulations. |
| |
| Keywords: | pilot design orthogonal frequency division multiplexing space frequency block code |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《北京邮电大学学报》浏览原始摘要信息 |
|
点击此处可从《北京邮电大学学报》下载全文 |
