STBC-OFDM系统的性能分析及仿真  

Performance Analysis and Simulation of STBC-OFDM

作　　者：王顶[1] 赵宏锋[1] 王永生[1] 

机构地区：[1]西北工业大学电子信息学院,西安710072

出　　处：《无线通信技术》2006年第4期9-12,共4页Wireless Communication Technology

摘　　要：提出了空时分集的正交频分复用系统(STBC-OFDM)的模型,完成了计算机仿真。结果表明,采用QPSK调制方式,双天线发射,单天线接收STBC与OFDM调制相结合,可以在1MH z带宽下得到1.73M b it/s的码速率,在瑞利信道下,该系统相对于无编码的OFDM系统,在误码率为1-0 3时,可获得3dB的信噪比增益。A STBC-OFDM model was proposed with support of computer simulations. The simulation results show that with QPSK, the combination of STBC and OFDM modulation provides the date-rate of 1.73Mbit/s under the bandwidth of 1MHz. Compared to the OFDM system, the proposed system may obtain up to 3dB SNR gain with BER of under Raleigh channel.

关 键 词：正交频分复用 空时分组码 空时分集 

分 类 号：TN911.22[电子电信—通信与信息系统]