Submillimeter waves -- Mathematical models : Radio propagation measurements and channel modeling : best practices for millimeter-wave and sub-terahertz frequencies / edited by Theodore S. Rappaport, New York University, Kate A. Remley, National Institute of Standards and Technology, Boulder, Camillo Gentile, National Institute of Standards and Technology, Gaithersburg, Andreas F. Molisch, University of Southern California, Alenka Zajić, Georgia Institute of Technology