【摘要】 将独立分量分析(ICA)技术应用于无线通信环境中,通过分析空时分组码(STBC)和垂直—贝尔实验室分层空时(V-BLAST)的本质结构,建立了多种适用于ICA的特定通信系统模型,并以此实现了对发射信号的盲检测,从而代替了基于信道估计的传统接收方法。理论分析表明,ICA盲接收技术的应用可以有效提高系统对信道估计错误的顽健性和系统设计的灵活性。仿真结果验证了所提方案的有效性,并对算法实现的复杂度和收敛特性进行了分析。更多还原

【Abstract】 An independent component analysis(ICA) technique was considered to be exploited to the wireless commu-nication contexts,and it was used to detect the transmitted signals blindly,which need not channel estimation.By ana-lyzing the essential structures of STBC(space-time block coding) and V-BLAST(vertical Bell-Labs layered space time) systems,several specific models for the ICA were established.The robustness against channel estimation errors and the flexibility of the system design could be obtained by using the ICA based schemes.Simulation results demonstrate the effectiveness of the proposed approach,furthermore,the complexity and convergence of the ICA based schemes are also discussed.更多还原