一种MIMO-OFDM系统帧同步设计与仿真  

Design for Frame Synchronization of MIMO-OFDM Systems Based on PCC Codes

作　　者：孙世国[1,2] 郑闻邓 陈帅[2] 卜凯利 

机构地区：[1]北京理工大学信息与电子学院,北京100081 [2]北京航天飞行控制中心通信总站,北京100094

出　　处：《通信技术》2010年第1期48-50,53,共4页Communications Technology

摘　　要：针对两个发射天线两个接收天线的MIMO-OFDM系统提出了一种新的同步设计方法。该方法采用了周期完全互补码PCC(Periodic Complete Complementary Code)作为发射天线端二个同步子帧训练符号。由于PCC码具有周期互相关函数为零,周期自相关函数为移位的单位冲激函数的性质,因此采用此码作为MIMO-OFDM系统同步子帧可以解决系统中多个天线同步信号检测时互相存在的干扰问题,而且该方法在信噪比比较低情况下仍然能够检测到各个发射天线端的同步信号。A novel scheme is proposed for synchronization in MIMO-OFDM system with 2 transmitting and 2 receiving antennas. This scheme uses periodic complete complementary （PCC） sub-frame of transmitting antennas. Since the PCC codes have good properti shifted unit pulse and cross-correlation function is zero, the scheme could antennas when detecting the synchronous sub-preamble for MIMO-OFDM system. be detected at low SNR with this method. codes as the training symbol in the es that autocorrelation function is solve interference in the different Furthermore, synchronization could

关 键 词：帧同步 MIMO-OFDM 周期完全互补码 帧头设计 

分 类 号：TN929.5[电子电信—通信与信息系统]