Adaptive Semi-Blind Receiver for TDD Massive MIMO Systems

This paper presents to use an orthogonal property of code for identifying base station and users in a cellular network. In addition, the principle of semi-blinds is applied with LS algorithm to estimate fading channel and reduce the effect of pilot contamination. The mixing parameter combines the coefficients of weight vector obtained from the pilot signal and the data. The simulation results confirm that the proposed technique can improve performance achievable downlink rate higher than that of both the LS with code for identifying base station and conventional LS algorithms.