A novel time and frequency synchronization scheme for OFDM systems

被引：21
|
作者：
Yi, Guo [1 ]
Gang, Liu [1 ]
Ge Jianhua [1 ]
机构：
[1] Xidian Univ, Natl Key Lab Integrated Serv Networks, Xian 710071, Peoples R China
来源：
IEEE TRANSACTIONS ON CONSUMER ELECTRONICS | 2008年 / 54卷 / 02期
基金：
中国国家自然科学基金;
关键词：
OFDM; time synchronization; frequency synchronization; training symbol;
D O I：
10.1109/TCE.2008.4560093
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A new training symbol is designed and a novel time and frequency synchronization scheme for orthogonal frequency division multiplexing systems is proposed. The time synchronization is accomplished by using the symmetric conjugate of the training symbol in time domain and the frequency synchronization is finished by utilizing the good autocorrelation of the training symbol in frequency domain. The simulation results show that compared with conventional schemes, the proposed scheme gives a more accurate estimate of symbol timing and carrier frequency offset and provides a wider acquisition range for the carrier frequency offset(1).
引用
收藏
页码：321 / 325
页数：5
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