| 基于IEEE 802.11a突发OFDM系统的帧同步与符号定时同步算法研究 |
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| 引用本文： | 孙文胜,张园园. 基于IEEE 802.11a突发OFDM系统的帧同步与符号定时同步算法研究[J]. 计算机工程与科学, 2009, 31(7) |
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| 作者姓名： | 孙文胜 张园园 |
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| 作者单位： | 杭州电子科技大学通信工程学院,浙江,杭州,310018;杭州电子科技大学通信工程学院,浙江,杭州,310018 |
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| 摘 要： | 本文对基于IEEE802.11a突发OFDM系统的帧同步与符号定时同步算法进行了研究,并对符号定时误差的影响进行了分析。针对目前许多符号定时同步算法存在着算法复杂、门限值随信号能量变化等缺点,提出了一种利用短训练符号特性的符号定时同步算法。分析和仿真结果表明,该算法能够有效地提高系统的误码性能,并且具有门限自适应、算法运算量低的特点,适合于突发OFDM系统的快速符号定时同步。
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| 关 键 词： | OFDM 帧同步 符号定时同步 |
A Frame Synchronization and Symbol Timing Synchronization Algorithm in the Burst OFDM Communication Based on IEEE 802.11a |
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| SUN Wen-sheng,ZHANG Yuan-yuan. A Frame Synchronization and Symbol Timing Synchronization Algorithm in the Burst OFDM Communication Based on IEEE 802.11a[J]. Computer Engineering & Science, 2009, 31(7) |
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| Authors: | SUN Wen-sheng ZHANG Yuan-yuan |
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| Affiliation: | School of Telecommunication Engineering;Hangzhou Dianzi University;Hangzhou 310018;China |
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| Abstract: | This paper studies an algorithm on frame and symbol timing synchronization in the burst OFDM communication based on IEEE 802.11a,and the effect of the symbol timing synchronization error is analyzed. It is not perfect in many algorithms for timing synchronization at present,such as high complexity,floated threshold along with the signal energy,and so on. Therefore,it is necessary to propose an algorithm for symbol timing synchronization using the specialty of short training sequence in this paper. The analy... |
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| Keywords: | OFDM |
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