| 对抗ICI的增强型载波干涉OFDM | |
| 陶晓明 ; 张超 ; 陆建华 ; TAO Xiaoming ; ZHANG Chao ; LU Jianhua | |
| 2010-06-09 ; 2010-06-09 | |
| 关键词 | CI-OFDM Doppler扩展 ECI-OFDM 自干扰消除算法 子载波间干扰(ICI) CI-OFDM Doppler spread ECI-OFDM self-cancellation scheme inter-carrier-interference(ICI) TN919.3 |
| 其他题名 | Enhanced CI-OFDM in inter carrier interference cancellation |
| 中文摘要 | 针对载波干涉正交频分复用(CI-OFDM)系统不能对抗高速移动环境下的Doppler扩展问题,为了进一步提高系统在高速移动环境(例如,300 km/h)下的性能,提出了一种新型的增强型CI-OFDM(ECI-OFDM)技术。通过优化设计CI码,添加频率域的循环前缀和循环后缀,并借鉴自干扰消除算法,得到正负间隔的ECI码,可以有效地对抗Doppler扩展造成的子载波间干扰(ICI)。理论分析及仿真结果表明:与传统的CI-OFDM系统相比,ECI-OFDM可以将系统能够支持的移动速度提高1倍以上。; The standard carrier interferometry orthogonal frequency division multiplexing(CI-OFDM) cannot effectively handle the Doppler spread in high-speed mobile environments.This paper describes an enhanced CI-OFDM(ECI-OFDM) to improve system performance in high-speed mobile environments up to 300 km/h.A cyclic prefix and a self-cancellation scheme are employed in the frequency domain using periodic expanded CI codes to cancel the inter-carrier-interference(ICI) caused by the Doppler spread.Theory analgses and simulations show that the maximum speed supported by the system is nearly double that of the standard system.; 国家“九七三”重点基础研究项目(2007CB310601) |
| 语种 | 中文 ; 中文 |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/54774]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | 陶晓明,张超,陆建华,等. 对抗ICI的增强型载波干涉OFDM[J],2010, 2010. |
| APA | 陶晓明,张超,陆建华,TAO Xiaoming,ZHANG Chao,&LU Jianhua.(2010).对抗ICI的增强型载波干涉OFDM.. |
| MLA | 陶晓明,et al."对抗ICI的增强型载波干涉OFDM".(2010). |
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