A robust interference alignment algorithm and the system design

In this paper, we proposed an interference alignment algorithm named Robust Weighted Minimum Mean Square Error(R-WMMSE) algorithm. We also design a 3-user wireless communication system which considers realization factors to evaluate the performance of the R-WMMSE algorithm. The system is realized through a system level simulation, both in floated-point and fixed-point manner. The results suggest that the algorithm work well in real communication systems. The impact of Line-of-Sight in Rician channel is also investigated.