Low-Complexity Polynomial Channel Estimation in Large-Scale MIMO With Arbitrary Statistics
Low-Complexity Polynomial Channel Estimation in Large-Scale MIMO With Arbitrary Statistics
This paper considers pilot-based channel estimation in large-scale multiple-input multiple-output (MIMO) communication systems, also known as massive MIMO, where there are hundreds of antennas at one side of the link. Motivated by the fact that computational complexity is one of the main challenges in such systems, a set of low-complexity …