Analysis of Different Path Loss Propagation Models Based on ۴G Walk Test Data

The study of path loss propagation is of high importance in telecommunication, for optimizing the efficiency of wireless communication networks. In this paper, four path loss propagation models; free space path loss (FSPL) model, Okumura model, Okumura-Hata model, and COST ۲۳۱-Hata model were compared. The models were compared using measurement data from Choba, Port Harcourt, Nigeria. The data is gotten from a ۴G walk test using two mobile applications. The first mobile application Network, Signal Info (version ۵.۶۸.۰۷), was used to acquire the received signal strength in and the distance between the BTS antenna and the mobile antenna. While the second mobile application, G-NetTrack Lite (version ۱۴.۸), was used to map out the track path followed during the test. Choba, the study area, is a coastal suburban area with map coordinates ۴.۸۹۴۱° N, ۶.۹۲۶۳° E. The measured distance range was from ۰.۰۹ km to ۰.۴۵ km, and a path loss range of ۶۹dB to ۸۱dB. While the BTS and mobile antenna heights were ۳۲ m and ۱m respectively, with a carrier frequency of ۸۰۰MHz. BTS transmission power of ۲۳ dBm was assumed, based on ۳GPP eNodeB recommendations. A graph comparison of the studied models showed that Okumura-Hata model and COST ۲۳۱-Hata model had the closest predictions to the measured path loss. The need for better path loss models for ۴G and ۵G propagations was observed

Keywords:

Path Loss , FSPL , Okumura Model , Okumura-Hata Model , COST ۲۳۱-Hata Model