*

High doping concentrations can be achieved in tungsten trioxide (WO₃), which has an ABO₃ perovskite structure with the A-site atom absent. Understanding the transport properties of these carriers is critical in many of display applications for which WO₃ is used. With state-of-the-art first-principles calculations, we investigate the role of electron-phonon scattering in electron transport. We use density functional theory based on hybrid functionals to calculate electronic structure and vibrational spectra. A comparison of using analytical models versus ab initio methods is given, and the microscopic role of spin-orbit splitting in the scattering mechanism is examined.