System level result of a novel adaptive antenna selection method in 3GPP LTE-Advanced system

With the rapid development process of LTE-Advanced standardization, 8 × 8 and even higher transmission mode are proposed to support higher transmission rate and flexible transmission scheme. However, transmission environment for mobile communications is complicated and diversified, that means the spatial gain will not always increase with the increase of antenna numbers. How to make full use of spatial resources is a problem in LTE related areas. Following our previous result of adaptive substream selection method in another paper, in this work we propose an adaptive antenna selection method, which is suitable for 8 × 8 or higher MIMO scenarios for 3GPP LTE-Advanced systems. Based on channel information feedbacks(e.g. information from SRS in TDD system or Channel Estimation in FDD system), we can effectively predict the sub-optimal antenna selection method at any given timeslot. A system level simulation result is given to prove the effectiveness of our method under our Matlab-Based LTE-Advanced System Level Simulation platform.