An Improved Timing and Frequency Synchronization in OFDM System Based on Pilot
A joint approximate maximum likelihood (ML) and pilot algorithm is proposed in OFDM system. The threshold of approximate ML timing metric is designed to confirm the range of timing offset and the precise timing offset in the range is presented utilizing the pilot timing metric. Meanwhile, the frequency offset which is registered this time is the frequency offset in the system. Simulation results show that the proposed algorithm can improve the synchronization performance in the multi-path fading channel, especially in the condition that the first path is not the path which has maximum energy.
OFDM pilot timing synchronization frequency synchronization
LI Hongwei Wang Gang
Telecommunication Engineering Institute, Air Force Engineering University, Xian, Shaanxi, 710077, China
国际会议
第八届国际测试技术研讨会(8th International Symposium on Test and Measurement)
重庆
英文
3452-3455
2009-08-01（万方平台首次上网日期，不代表论文的发表时间）