Cramer-Rao bounds Channel estimation 1 Chernoff information 1 Crame-Rao lower bounds 1 Crame-rao low bound 1 Cramer Rao lower bound 1 Cramer-Rao lower bound (CRLB) 1 Equalizers 1 Error probabilities 1 Errors 1 Estimation 1 Flow velocity 1 Flow velocity estimation 1 Fluid flow measurement 1 Frequency estimation 1 Gaussian approximations 1 Maximum a posteriori 1 Maximum likelihood estimation 1 Mean square error 1 Minimum mean-square error estimators 1 Molecular communication 1 Molecules 1 Multi-node synchronization 1 Multi-nodes 1 Performance analysis 1 Phase measurement 1 Radio frequency 1 Radiofrequencies 1 Reconfigurable 1 Reconfigurable intelligent surface 1