Cyclostationarity-based Symbol Timing and Carrier Frequency Offset Estimation for OFDM System

摘要：

Based on cyclostationary characteristics, a blind algorithm for estimating carrier frequency and symbol offset of multi-carrier Orthogonal Frequency Division Multiplexing (OFDM) system in Rayleigh multipath channels is proposed in this paper. Through selecting appropriate cycle frequencies, we first isolate the timing offset from frequency offset, and then propose independently time and frequency offset estimation method respectively. Computer simulation results show that the proposed algorithm can resist Rayleigh multipath channel; the performance of the estimator is robust to Signal-to-Noise (SNR) in wide-sense stationary noise. Furthermore, the symbol timing estimation errors do not affect the frequency offset results, and similarly, the frequency offset estimation result doesnt affect the symbol timing estimation results.

关键词： cyclostationarity OFDM symbol timing estimator carrier frequency offset estimator

作者: Zhang Jingyan Li Youming

作者单位: Institute of Communication Technology Ningbo University 315211 Ningbo China

会议类型: 国际会议

会议名称: The 2010 International Conference on Computer Application and System Modeling(2010计算机应用与系统建模国际会议 ICCASM 2010)

会议地点: 太原

会议语种:英文

页码: 546-550

在线出版日期: 2010-10-22（万方平台首次上网日期，不代表论文的发表时间）