COMPARISON OF VARIOUS CHANNEL ESTIMATION TECHNIQUES FOR MASSIVE MIMO SYSTEMS

Abstract

In this paper we have studied and proposed some channel estimation methods for massive MIMO systems.These methods have better performance as compared to others .we have considered sparse frequency selective channel. These channels are independently sparse and share a common support. The methods  estimate the impulse response for each channel observed by the antennas at the receiver. At receiver arrays of antennas have been used, antennas coordinate with each others. Estimation is performed in a coordinated manner by sharing minimal information among neighboring antennas to achieve results better than many contemporary methods. MATLAB is used for simulation. Simulations demonstrate the superior performance of the proposed method.