A Modified COST-231-Hata Path Loss Model for Typical Semi-Urban Environments in Nigeria
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Date
2024-04
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Publisher
Kampala International University
Abstract
Outdoor path loss propagation modeling is critical in the planning and design of the coverage
area by the Global System for Mobile Communication (GSM). For the best prediction of GSM
signal at any location within its coverage region, an accurate forecast based on critical
characteristics and a mathematical model is necessary. Multiple studies on path loss propagation
model prediction for GSM networks conducted at various semi-urban environments in Nigeria
proclaimed that propagation path loss models may provide different results when utilized in
environments other than those in which they were initially designed, that car drive-test
methodology was used during the data collection, and that COST-231-Hata model provides closet
prediction to the practical measure values. This paper created an appropriate path loss model
based on the COST-23-Hata model and outdoor measurement at 1800 MHz frequency range for
the semi-urban area of Kwara State, Nigeria. The created model was used and validated with the
measured data and COST-231-Hata model at other different semi-urban environments in Nigeria.
The results analysis shows that the created model performed satisfactorily given the closet path
loss prediction to the practical measure path loss values at all the study locations. It also gives the
lowest Square Root Means Error (SRME) and Standard Deviation (SD) in all the base stations
that were tested in semi-urban environments. The newly created model would therefore be more
appropriate for GSM 1800 network design and installation in semi-urban environments in Kwara
State, Nigeria, as well as any other semi-urban locations in Nigeria.
Description
Keywords
COST-231-Hata, Path loss, RSSI, Standard Deviation, Root Mean Square