基于两分量变换的MIMO系统通信性能优化研究  

Research on Communication Performance Optimization of MIMO Systems Based on Two-component Transformation

作　　者：沙学军[1] 彭睿 倪嘉昊 王茹[2] SHA Xuejun;PENG Rui;NI Jiahao;WANG Ru(Communication Research Center,Harbin Institute of Technology,Harbin 150001,China;China Mobile Communications Group Heilongjiang Co.,Ltd.,Harbin 150028,China)

机构地区：[1]哈尔滨工业大学通信技术研究所,黑龙江哈尔滨150001 [2]中国移动通信集团黑龙江有限公司,黑龙江哈尔滨150028

出　　处：《无线电工程》2025年第3期455-462,共8页Radio Engineering

基　　金：国家自然科学基金(62171151)。

摘　　要：介绍了一种基于两分量变换的通信系统,并探讨了其在提升抗衰落能力和降低误码率方面的应用。传统信号传输方式中,符号调制与物理资源紧密相关,容易受到信道衰落的影响。两分量变换通过将信号的不同部分调制在独立的物理资源上,能够有效地平均化信号畸变,减少误码率。详细分析了两分量变换的数学模型,并将其应用于多输入多输出(Multiple Input Multiple Output,MIMO)系统中,提出了一种优化两分量变换参数的方法。仿真结果表明,在合理的变换参数下,该方法可以显著改善系统的通信性能。A communication system based on two-component transformation is introduced and its application in improving anti-fading capability and reducing bit error rate is discussed.In traditional signal transmission methods,symbol modulation is closely related to physical resources and is easily affected by channel fading.Two-component transformation can effectively average signal distortion and reduce bit error rate by modulating different parts of the signal on independent physical resources.The mathematical model of two-component transformation is analyzed in detail and applied to Multiple Input Multiple Output(MIMO)systems,and a method to optimize the parameters of two-component transformation is proposed.Simulation results show that under reasonable transformation parameters,the proposed method can significantly improve the communication performance of the system.

关 键 词：两分量变换 多输入多输出系统 畸变平均化 信道衰落 误码率 

分 类 号：TN919.23[电子电信—通信与信息系统]