Integer Frequency Offset Estimation Based on ML Algorithm in OFDM Systems
OFDM signal is very sensitive to frequency offset, it is necessary to estimate the carrier frequency offset. Frequency offset can be divided into two parts: integer frequency offset (IFO) and fraction frequency offset (FFO). The ML algorithm is a good synchronization algorithm, but it cannot estimate the IFO. We design a new method to estimate the IFO based on ML algorithm, which adding position marker to the OFDM sequence. By simulation, IFO estimator has better performance than the conventional method.
OFDM synchronization IFO ML
Pang Zongshan Li Xiaomin
Optics and Electronic engineering Department, Ordnance Engineering College, Shijiazhuang, Hebei, China, 050003
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
1093-1096
2009-08-01（万方平台首次上网日期，不代表论文的发表时间）