摘要
Two kinds of lattice-basis reduction precoding schemes based on successive interference cancellation are proposed.The successive interference cancellation(SIC) structure can be obtained by either orthogonal and a right triangular matrix(QR) decomposition,or the Vertical Bell Labs Layered Space Time(VBLAST) algorithm which provides optimal user ordering.Moreover,the extended channel approach is applied to the proposed SIC-based schemes.Simulation results show that the proposed schemes can achieve comparable BER performance to vector precoding(VP).
Two kinds of lattice-basis reduction precoding schemes based on successive interference cancellation are proposed. The successive interference cancellation （SIC） structure can be obtained by either orthogonal and a right triangular matrix （QR） decomposition, or the Vertical Bell Labs Layered Space Time （VBLAST） algorithm which provides optimal user ordering. Moreover, the extended channel approach is applied to the proposed SIC- based schemes. Simulation results show that the proposed schemes can achieve comparable BER performance to vector precoding （VP）.
基金
the National Natural Science Founda-tion of China (Nos. 60772100 and 60872017)
the National High Technology Research and Development Program (863) of Chinal (No. 2009AA011505)
