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一种改进的MIMO-OFDM帧同步算法
引用本文:杨贻嘉,葛利嘉. 一种改进的MIMO-OFDM帧同步算法[J]. 数字通信, 2012, 39(2): 28-32
作者姓名:杨贻嘉  葛利嘉
作者单位:重庆通信学院,重庆,400035
摘    要:定时同步和频率同步是影响MIMO—OFDM系统性能的关键因素。提出一种改进的帧同步算法并分析其仿真结果。仿真结果表明:该算法能够消除传统帧定时算法的平台效应,在提高帧同步精度的同时,对系统小数倍频偏估计性能也有所提高。

关 键 词:多输入多输出系统  正交频分复用  帧同步

An improved method for MIMO-OFDM frame synchronization
YANG Yi-jia , GE Li-jia. An improved method for MIMO-OFDM frame synchronization[J]. Digital Communication, 2012, 39(2): 28-32
Authors:YANG Yi-jia    GE Li-jia
Affiliation:(Chongqing Communication College,Chongqing 400035,P.R.China)
Abstract:The combination of multiple input multiple output(MIMO) and orthogonal frequency division multiplexing(OFDM) can well solve the most serious problems about broadband wireless communication system in future,which are multipath fading and the utilization of frequency band.At the same time,it can also improve the system capacity and transmission reliability.However,timing synchronization and frequency synchronization is the key factor affecting the performance of MIMO-OFDM system.This paper proposes an improved frame synchronization algorithm,and this algorithm can eliminate the platform effects and improve the accuracy of the frame synchronization.Meanwhile,the fractional frequency shift estimation performance has also improved.
Keywords:MIMO  OFDM  frame synchronization
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