Several strategies have been proposed to control and suppress runaway electron (RE) beams in tokamak plasmas, such as the use of massive gas injection, pellet injection or use of resonant magnetic perturbations [1]. An alternative strategy to control the RE beam energy was proposed, which relies on the resonant interaction between high energy electrons and whistler waves [2]. The mechanism of destabilization of electromagnetic waves by a RE beam was proposed in 2006 [3], but RE-driven whistler waves in a tokamak plasma were first observed only in 2018 [4] and a detailed study of radiofrequency emissions in presence of a RE beam was carried out in 2021 [5]. Here a model for the description of plasma waves destabilization in presence of a RE beam in COMPASS is proposed. Two different situations are considered: the one in which the waves are spontaneously generated inside the RE beam and the one in which the waves are injected from the outside by an antenna. The spectrum of the wave is calculated based on the shape of the antenna in the far-field approximation. Wave propagation is calculated using the ray-tracing method [6]; the linear growth rate of the wave is calculated using analytical formulas [7], valid in the considered experimental conditions. Multiple reflections of the wave inside the plasma are followed and the positions of maximum wave amplification are identified. Attempts to determine the optimal wave injection strategy are made. [1] J. Mlynar et al., Plasma Physics and Controlled Fusion 61, 014036 (2018) [2] Z. Guo et al., Physics of Plasmas 25, 032504 (2018) [3] T. Fulop et al., Physics of Plasmas 13, 062506 (2006) [4] D.A. Spong et al., Physical Review Letter 120, 155002 (2018) [5] P. Buratti et al., Plasma Physics and Controlled Fusion 63, 095007 (2021) [6] P. Aleynikov and B. Breizman, Nuclear Fusion 55, 043014 (2015) [7] A. Komar et al., Physics of Plasmas 20, 012117 (2013)