Downlink Performance of Superimposed Pilots in Massive MIMO Systems
Downlink Performance of Superimposed Pilots in Massive MIMO Systems
In this paper, we investigate the downlink throughput performance of a massive multiple-input multiple-output system that employs superimposed pilots for channel estimation. The component of downlink (DL) interference that results from transmitting data alongside pilots in the uplink (UL) is shown to decrease at a rate proportional to the square …