Blind Source Separation for Complex-Valued Signals Using Generalized Autocorrelation

Xiaogang Tang, Sun'an Wang, Jiong Li
2018 Mathematical Problems in Engineering  
We introduce a new complex-valued blind source separation approach, based on generalized autocorrelations of sources, to improve the spectrum efficiency for the next-generation wireless communications system. The proposed algorithm considers the temporal structures of communication signals and the natural gradient-based method is used to optimize the demixing matrix. In addition, the local stability condition is proved. Simulation results are presented showing the superior performance of the
more » ... rformance of the proposed algorithm in the intersymbol interference of the estimated signals.
doi:10.1155/2018/8076468 fatcat:gfie5ec4y5doxbyp3yc7gqk6mi