摘要
对多输入多输出(MIMO)中的Alamouti编码技术进行研究。首先分析了Alamouti空时分组码编码器的信号产生,其次用最大似然译码算法对其解码,并对不同场景下的传输方案进行性能分析,最后仿真研究它在瑞利信道和Ricean衰落信道下不同收发天线数量的系统误码率的变化。仿真结果表明所提出的译码算法拥有更好的误符号率性能,该研究为高速移动环境下双向通信系统的设计提供参考。
The Alamouti coding technique in MIMO is studied.Firstly,the signal generation of Alamouti space time block code encoder is analyzed,then it is decoded with maximum likelihood decoding algorithm,and the performance of the transmission scheme under different scenarios is analyzed.Finally,the variation of bit error rate of the system under Rayleigh channel and Ricean fading channel for different numbers of receiving and receiving antennas is simulated.The simulation results show that the proposed decoding algorithm has better error rate performance,which provides reference and basis for the design of two-way communication system in high-speed mobile environment and has strong practical significance.
作者
孙会楠
SUN Hui-nan(School of Electronic an Information Engineering,Harbin Huade University,Harbin 150025,China)
出处
《长春工程学院学报（自然科学版）》
2020年第3期51-55,共5页
Journal of Changchun Institute of Technology：Natural Sciences Edition
