Long Term Evolution (LTE) is the 4G wireless broadband access technology aimed at providing multimedia services based on IP networks. It has been designed to improve system capacity and coverage, improve user experience through higher data rates and reduced latency, reduced deployment and operating costs, and seamless integration with existing communication systems. This paper concerns about the wireless propagation models, which plays a very significant role in planning of any wireless network. In this paper, a comparison has been presented among the different propagation models both in terms of path loss and computational complexity using the NS-3 simulator.