| 摘要: |
| 分类总结了典型的OFDM系统常用同步算法，讨论了各类时间同步算法的优缺点
，并仿真比较了具有代表性的算法性能，提出了提高时间同步性能应从叠加训练序列
、共轭对称结构等方面考虑的建议，这对OFDM系统时间同步研究具有一定的指导意义。 |
| 关键词: 正交频分复用 时间同步 循环前缀 叠加训练序列 性能比
较 |
| DOI： |
|
| 基金项目:国家自然科学基金资助项目（61072073）;四川省教育厅
重点项目（10ZA072）;西南石油大学新进高层次教师科研启动基金 |
|
| Performance Comparison among Timing Synchronization Algorithms for OFDM Systems |
| GE Yong-hua,LUO Ren-ze,DANG Yi-pu,YI Dan |
| (Key Laboratory of Optical Fiber Communication Optical Internet Institute,Chongqing University of Posts and Telecommunications,Chongqing 400065,China;Key Laboratory of Optical Fiber Communication Optical Internet Institute,Chongqing University of Posts
and Telecommunications,Chongqing 400065,China;Southwest Petroleum University,Chengdu 610500,China) |
| Abstract: |
| Timing synchronization algorithms commonly used in typical
OFDM systems are classified and summarized.The advantages and disadvantages of v
arious timing synchr
onization algorithms are discussed.The performance of typical algorithms is comp
ared through simulation.Suggestion is given that superimposed training sequence
and symmetric pr
operty structure should be taken into consideration to improve the timing synchr
onization performance,which has certain significance of guidance for the study o
f time synchronization algorithms in OFDM systems. |
| Key words: OFDM timing synchronization cyclic prefix superimposed training sequence perf
ormance comparison |
