%0 Journal Article
%A BIE Hong-xia
%A LEI Chun-yang
%A WU Wen-jing
%A ZHANG Xue-kun
%A ZHENG Jian
%T Improved Symbol Timing Synchronization Algorithm for OFDM Systems Mitigating Narrowband Interference
%D 2015
%R 10.13190/j.jbupt.2015.01.015
%J Journal of Beijing University of Posts and Telecommunications
%P 76-81
%V 38
%N 1
%X <p>In orthogonal frequency division multiplexing (OFDM) systems, the validity and accuracy of symbol timing synchronization is seriously impacted by narrowband interference that cannot be eliminated by conventional algorithms. To improve the performance, a new timing metric was proposed with help of a scrambling operation to the preamble symbol in Park's algorithm. Simulations are carried out in TU-6 multipath channel under the narrowband interference. It is shown that the improved algorithm successfully obtains the needed sharp correlation peak to realize accurate timing synchronization. Furthermore, with increase of the number of sub-carriers, the anti-narrowband-interference performance can be obviously promoted. In addition, the improved algorithm also reduces the size of the correlation sub-peaks, which improves the anti-noise performance.</p>
%U https://journal.bupt.edu.cn/EN/10.13190/j.jbupt.2015.01.015