| 基于虚导频和功控导频的OFDM信道估计 |
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| 引用本文： | 陈亚祥,黄锐,陈明.基于虚导频和功控导频的OFDM信道估计[J].信息技术,2005,29(7):50-52. |
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| 作者姓名： | 陈亚祥 黄锐 陈明 |
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| 作者单位： | 东南大学移动通信国家重点实验室,南京,210096 |
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| 摘 要： | 提出了一种基于虚导频和功控导频的OFDM信道估计方法。该方法通过选择可靠的解调数据符号作为虚导频，同时对导频采用功率控制，从而提高了信道估计的质量。计算机仿真结果显示，相对于传统方法，可以用较少的导频获得性能的改善。
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| 关 键 词： | 正交频分复用 信道估计 多径信道 功率控制 |
| 文章编号： | 1009-2552(2005)07-0050-03 |
| 修稿时间： | 2004年9月13日 |
OFDM channel estimation with virtual pilot symbols and power-controlled pilot symbols |
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| CHEN Ya-xiang,HUANG Rui,CHEN Ming.OFDM channel estimation with virtual pilot symbols and power-controlled pilot symbols[J].Information Technology,2005,29(7):50-52. |
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| Authors: | CHEN Ya-xiang HUANG Rui CHEN Ming |
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| Abstract: | In this paper, an OFDM channel estimation method with virtual pilot symbols and power-controlled pilot symbols is presented. In order to enhance the quality of channel estimation, we select reliably demodulated data symbols as the virtual pilots, at the same time, transmitting power control can be employed on the transmitted pilot symbols. From computer simulation, it can be seen that the proposed method improves the performance of channel estimation with fewer pilot symbols than what would be normally required in the con-(ventional) techniques. |
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| Keywords: | OFDM channel estimation multipath power control |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
