MIMO􀀁 OFDM 技术将成为第4 代移动通信系统的关键技术, 因MIMO􀀁 OFDM 对时间和频率偏移非常敏感, 因此MIMO􀀁 OFDM 同步显得尤为重要。提出了一种新的MIMO􀀁 OFDM 定时同步和频偏同步技术。以GCL 序列为基础设 计了一个新的符合MIMO􀀁 OFDM 同步技术的导频序列, 通过对该导频序列进行2 次相关得到频率估计, 并将所得频率 运用到定时同步中, 得到更为准确的时间估计

Abstract—In this paper, we study the joint estimation of inphase and quadrature-phase (I/Q) imbalance, carrier frequency offset (CFO), and channel response for multiple-input multipleoutput (MIMO) orthogonal frequency division multiplexing (O

Abstract—In this paper, we study the joint estimation of inphase and quadrature-phase (I/Q) imbalance, carrier frequency offset (CFO), and channel response for multiple-input multipleoutput (MIMO) orthogonal frequency division multiplexing (O