A Joint Synchronization Algorithm for OFDM System
In this paper, a joint synchronization algorithm is presented for Orthogonal Frequency Division Multiplexing(OFDM) system under multi-path fading channel. In the algorithm, the length of training sequence is a half of the conventional and the frame detection and fraction frequency offset (FFO) estimation maintain the performance of mean and variance. Moreover, a precise synchronization method based on known-information of training sequence is introduced to this joint algorithm. It is proved that this method will be not efficient until the carrier frequency offset (CFO) is corrected. Theoretical analysis and simulation results show this scheme exchanges the complexity increase of just about 5％ over conventional timing algorithm for a large improvement of the precision of timing synchronization.Andthejointalgorithmreachesthe requirement of broadband wireless access system (BWA) based on OFDM.
OFDM Synchronization Symbol timing Frequency synchronization
YAO Zhiqiang YIN Junxun
College of Information and Engineering Xiang Tan University Xiang Tan, 411105, China College of Electronic and Information Engineering South China University of Technology Guangzhou, 51
国际会议
厦门
英文
51-56
2006-07-27（万方平台首次上网日期，不代表论文的发表时间）