Proposed Path Loss Model for Outdoor Environment in tropical climate for the 28-GHz 5G System

This study summarizes the results of the measurement campaigns conducted at 28 GHz in the outdoor environment for the 5G system. The study takes place in University Technology Malaysia (UTM) in the tropical climate of Kuala Lumpur. The path loss models are extensively investigated, including the line-of-sight (LOS) measurement results for the co-polarization antenna. The co- polarization antenna makes use of high directional horn antennas at the transmitter and receiver. The path loss models for close-in free space and close-in break point for a unique environment have been analyzed on the basis of the data measured. The results indicate thatfor the LOS scenario, the path loss exponent varies depending on theantenna configuration. The study reveals that the CIB path loss model is appropriate for LOS scenarios since it fits the data of a specific environment.