Urbanization of cities is a problem for the quality of signal transmission power. Thus, the objective of this paper is to define a power control mechanism based on an estimation of the propagation losses due to obstacles (buildings, houses) in an LTE/LTE-advanced network. Our methodology focuses on a comparison between different radio propagation models that can be used in LTE/LTE-advanced technology such as: the propagation models COST 231 Walfisch-Ikegami, 3GPP, WINNERII and the one proposed by Saulis-Vitas in an urban area based on the following parameters: base station height, building height, obstacle density, mobile position, street width and carrier frequency. From simulations made on the MATLAB platform, the results show that the COST 231 Walfisch-Ikegami model has more propagation loss compared to the Saulis-Vitas model which provides better results in loss compensation by optimizing power control for a value of and

power control, LTE/LTE-advanced technology, COST 231 Walfisch-Ikegami model, Saulis-Vitas model, propagation loss.