We will examine the global internal gravity wave dissipation by conducting energy budget analyses of internal wave-permitting global ocean models using MITgcm. Recent studies using high-resolution regional ocean models, forced at their lateral boundaries by the well-known LLC4320 simulation, indicate the importance of choosing appropriate horizontal and vertical dissipation schemes. We aim to accordingly employ appropriate parameterization of the dissipation and improve the global characterization of internal wave mixing by comparing with in-situ observational data.