| 基于OFDM的IEEE802.11a标准的同步方法 |
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| 引用本文： | 俞鹤伟 赖声礼 余爱民 陈一天. 基于OFDM的IEEE802.11a标准的同步方法[J]. 电讯技术, 2004, 44(2): 50-54 |
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| 作者姓名： | 俞鹤伟 赖声礼 余爱民 陈一天 |
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| 作者单位： | 华南理工大学,电子与信息学院,广东,广州,510640;广东省科技干部学院,广东,广州,510640 |
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| 基金项目： | 广东省火炬计划项目(2002C1010106) |
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| 摘 要： | 从IEEE802．11a的数据分组结构出发，提出了使用窗口平移相关法来进行符号定时，并利用训练序列估计频偏。仿真结果表明，该算法能有效地克服噪声及频偏的影响，定时准确，较好地消除了频偏，与其它文献提出的算法相比，具有定时准确、计算量小的特点。
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| 关 键 词： | OFDM 同步 宽带无线局域网 IEEE802.11a 算法 |
| 文章编号： | 1001-893X(2004)02-0050-05 |
Synchronization Algorithm for OFDM Based Standard IEEE802.11a |
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| YU He-wei,LAI Sheng-li,YU Ai-min,CHEN Yi-tian. Synchronization Algorithm for OFDM Based Standard IEEE802.11a[J]. Telecommunication Engineering, 2004, 44(2): 50-54 |
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| Authors: | YU He-wei LAI Sheng-li YU Ai-min CHEN Yi-tian |
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| Affiliation: | YU He-wei~1,LAI Sheng-li~1,YU Ai-min~1,CHEN Yi-tian~2 |
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| Abstract: | According to the packet structure of standard IEEE802.11a, mathematical methods for OFDM symbol timing using correlating of shifting windows, and carrier frequency offset estimating using training symbol are proposed. The simulation result shows that this algorithm can overcome the influence of noise and carrier frequency offset, get an exact symbol timing, and eliminate the carrier frequency offset. Comparing with other papers, this algorithm has characters of exact symbol timing and a fell of calculation. |
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| Keywords: | OFDM Synchronization Broad band wireless LAN IEEE802.11a Algorithm |
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