Abstract:

A method based on signal to leakage and noise ratio (SLNR) and combined with channel calibration scheme to achieve multi-user and multi-stream transmission for long term evolution-advanced systems is proposed. In use of SLNR principle, it reduces the interference between different users. Through the establishment of the channel calibration scheme, the proposed method restores the channel reciprocity of practical communication systems, improves the system performance. Simulation results show that its system performance is better than traditional block diagonalization (BD) transmission, it restores the channel reciprocity of non-ideal channel effectively, improves the system performance.