| 移动Wimax系统中ICI抑制技术的研究 |
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| 引用本文： | 刘翔宇,郑建宏.移动Wimax系统中ICI抑制技术的研究[J].光通信研究,2009,35(1):63-66. |
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| 作者姓名： | 刘翔宇 郑建宏 |
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| 作者单位： | 重庆邮电大学,移动通信工程研究中心,重庆,400065 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 载波间干扰(ICI)主要由频率偏差所引起,它破坏了正交频分复用(OFDM)系统中子载波之间的正交性,大大降低了系统的性能.在高速移动 Wimax系统中,信道的时变性导致的ICI更加不容小觑.文章将一种基于部分传输序列(PTS)算法的ICI抑制技术引入到移动Wimax系统中,针对其运算复杂的弊端提出了优化算法,并通过MATLAB语言进行了系统仿真,证明了算法对于Wimax系统中抑制ICI的有效性.
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| 关 键 词： | 正交频分复用 载波间干扰 Wimax系统 部分传输序列 |
| 收稿时间： | 2008/11/12 |
The research of ICI cancellation in mobile Wimax |
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| Liu Xiangyu,Zheng Jianhong.The research of ICI cancellation in mobile Wimax[J].Study on Optical Communications,2009,35(1):63-66. |
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| Authors: | Liu Xiangyu Zheng Jianhong |
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| Affiliation: | Mobile Communication R&D Center of Chongqing University of Posts and Telecommunications;Chongqing 400065;China |
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| Abstract: | Mainly caused by frequency offsets,Inter-carrier Interference(ICI) disrupts the orthogonality between the sub-carriers in the Orthogonal Frequency Division Multiplexing(OFDM) system,greatly debasing the system performance,and in the high-rate mobile Wimax system,ICI caused by time-varying channels is even more not to be overlooked.In this paper,a PTS algorithm-based ICI cancellation technology is introduced into the mobile Wimax system and an optimized algorithm proposed in view of the computational complex... |
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| Keywords: | OFDM ICI Wimax system PTS |
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