| 非正交频分复用系统的无干扰分离算法 |
| |
| 引用本文： | 李振锋,陈昌海,尹长川. 非正交频分复用系统的无干扰分离算法[J]. 电视技术, 2016, 40(5): 91-95. DOI: 10.16280/j.videoe.2016.05.020 |
| |
| 作者姓名： | 李振锋 陈昌海 尹长川 |
| |
| 作者单位： | 1. 四川工程职业技术学院电气信息工程系,四川德阳618000;北京邮电大学泛网无线通信教育部重点实验室,北京100876;2. 四川工程职业技术学院电气信息工程系,四川德阳,618000;3. 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： | 国家自然科学基金项目(61271257) |
| |
| 摘 要： | 针对现有的非正交频分复用信号分离算法复杂度高这一问题,提出了对多路非正交频分复用信号可以实现无干扰分离的简化算法,通过建立系统模型和理论推导,使用傅里叶变换降低了非正交频分复用信号接收机的复杂度.系统仿真结果表明,使用非正交频分复用技术可以在更小的带宽内传输与OFDM相同速率的信号;在传输速率相同的情况下,由于传输带宽的减小,引入传输系统的噪声功率得到了降低,最终使得接收机处的误码率变小.
|
| 关 键 词： | 非正交 频分复用 傅里叶变换 误码率 |
| 收稿时间： | 2015-10-23 |
| 修稿时间： | 2015-11-09 |
A Separation Algorithm without Interference in Non-orthogonal Frequency Division Multiplexing System |
| |
| Li Zhenfeng,Chen changhai and Yin Changchuan. A Separation Algorithm without Interference in Non-orthogonal Frequency Division Multiplexing System[J]. Ideo Engineering, 2016, 40(5): 91-95. DOI: 10.16280/j.videoe.2016.05.020 |
| |
| Authors: | Li Zhenfeng Chen changhai Yin Changchuan |
| |
| Affiliation: | Sichuan Engineering Technical College,Sichuan Engineering Technical College,Key Laboratory of Universal Wireless Communications,Ministry of Education,Beijing University of Posts and Telecommunications |
| |
| Abstract: | A separation algorithm without interference in non-orthogonal frequency division multiplexing system was proposed, the complexity of the receiver of non-orthogonal frequency division multiplexing system was reduced by using Fourier transform, and according the theoretical analysis, the multiplexing gainSof the non-orthogonal frequency division multiplexing system relative to the single carrier system was obtained with the same bandwidth and transmission power. The numerical results shows that, multiplexing gainSof the non-orthogonal frequency division multiplexing system increases with the frequency multiplexing factor and the signal-to-noise ratio, the multiplexing gainSof the non-orthogonal frequency division multiplexing system is greater than that of orthogonal frequency division multiplexing system when the frequency multiplexing factor is more than 2, and the maximum multiplexing gain is equal to the frequency multiplexing factor when the frequency multiplexing factor keeps. |
| |
| Keywords: | non-orthogonal relay frequency division multiplexing Fourier transform multiplexing gain |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《电视技术》浏览原始摘要信息 |
|
点击此处可从《电视技术》下载全文 |
|
