| 重叠频分复用系统循环前缀的设计和分析 |
| |
| 引用本文： | 王键,李道本,杨讯,张曦林.重叠频分复用系统循环前缀的设计和分析[J].电子科技大学学报(社会科学版),2009(1). |
| |
| 作者姓名： | 王键 李道本 杨讯 张曦林 |
| |
| 作者单位： | 北京邮电大学信息工程学院; |
| |
| 基金项目： | 国家自然科学基金(90604035) |
| |
| 摘 要： | 研究了在时变多径频率选择性衰落信道条件下,重叠频分复用/非正交频分复用系统的离散傅里叶变换实现,并对OvFDM-DFT系统的循环前缀进行了分析和设计,讨论了两种不同的循环前缀设计方法,即普通循环前缀和补零方式循环前缀对系统性能的影响。分析和仿真结果表明,在时变多径频率选择性衰落信道条件下补零方式的循环前缀远好于普通方式的循环前缀,仿真结果也验证了OvFDM符号具有明显的抗衰落性能。
|
| 关 键 词： | 循环前缀 离散傅里叶变换 非正交频分复用 重叠频分复用 |
Prefix Design and Performance Analysis of the Overlapped Frequency Division Multiplexing System |
| |
| WANG Jian,LI Dao-ben,YANG Xun, ZHANG Xi-lin.Prefix Design and Performance Analysis of the Overlapped Frequency Division Multiplexing System[J].Journal of University of Electronic Science and Technology of China(Social Sciences Edition),2009(1). |
| |
| Authors: | WANG Jian LI Dao-ben YANG Xun ZHANG Xi-lin |
| |
| Institution: | School of Information Engineering;Beijing University of Posts and Telecommunications Haidian Beijing 100876 |
| |
| Abstract: | This paper gives the discrete Fourier transform (DFT) implementation of the overlapped frequency division multiplexing (OvFDM) of non-orthogonal frequency division multiplexing (NOFDM) systems. This paper investigates the impact of conventional cyclic-prefix and zero-padding cyclic-prefix for DFT-OvFDM/DFT- NFODM systems in the time-variant frequency-selective fading channels, respectively. Theoretical analysis and simulation results show that the zero-padding cyclic-prefix can exploit much more frequency d... |
| |
| Keywords: | cyclic-prefix discrete Fourier transform non-orthogonal frequency division multiplexing overlapped frequency division multiplexing |
| 本文献已被 CNKI 等数据库收录！ |
