| 一种改进的MC-CDMA系统结构 |
| |
| 引用本文： | 叶永涛,何维苗,益晓新.一种改进的MC-CDMA系统结构[J].信号处理,2004,20(4):420-422. |
| |
| 作者姓名： | 叶永涛 何维苗 益晓新 |
| |
| 作者单位： | 1. 总参第63研究所,南京,210007
2. 通信工程学院无线教研室,南京,210007 |
| |
| 摘 要： | MC-CDMA在频域扩频时实际上是一种频率分集,对于频率分集重数的要求通常小于子载波的数目N,故扩频因子可以小于子载波数目。改进了这种MC-CDMA系统的结构,通过在频域引入交织器,使交织后频率分集各分量经历独立的哀落,从而提高了抗哀落能力。最后给出了用系统仿真软件SPW仿真的结果。
|
| 关 键 词： | MC-CDMA 交织器 频率分集 |
| 修稿时间： | 2003年5月14日 |
An Improved Structure of MC-CDMA System |
| |
| Ye Yongtao He Weimiao Yi Xiaoxin.An Improved Structure of MC-CDMA System[J].Signal Processing,2004,20(4):420-422. |
| |
| Authors: | Ye Yongtao He Weimiao Yi Xiaoxin |
| |
| Abstract: | MC-CDMA has the effect of frequency diversity when the spread-spectrum is doing in the frequency domain, requirement for the frequency diversity order is general lower than the requirement for the number of sub-carriers, so the spread-spectrum factor could be smaller than the number of sub-carriers. The structure of such kind of MC-CDMA system is improved by introducing interleaver in frequency domain, ensure that fades among frequency diversity components are independent, so the anti-fade ability has been improved. The numeric results using simulation software SPW are given out at last. |
| |
| Keywords: | MC-CDMA interleaver frequency diversity |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
