Correlation-Aware Minimum Mean Square Error Channel Estimation for Uplink Massive Multiple-Input Multiple-Output Systems in Sixth-Generation Networks
Massive Multiple-Input Multiple-Output (mMIMO) is a key enabling technology for beyond fifth-generation (B5G) and sixth-generation (6G) wireless systems; however, its performance critically depends on accurate channel state information (CSI). Conventional minimum mean square error (MMSE) channel estimators are typicall...