Investigation into Path Loss Propagation at UHF Band in Low Latitude Region
Keywords:
Path Loss Models, Mean Square Error, GSM Frequency, Cost 231Hata Model, Erickson ModelAbstract
Knowledge of propagation characteristics in the mobile channel is important to the design of a cellular system. It is a major component in the analysis and design of the link budget of a Telecommunication system. This paper deals with the outdoor path loss bahaviour. The study has been conducted in The Polytechnic, Ibadan at GSM frequency 900MHz so as to fit a suitable propagation model within the campus and environs. The experimental data collected from measurements were compared with Cost 231 Hata model, Erickson model and free space models. The results are in good agreement with Cost 231 Hata model. The accuracy of the results is estimated by determine the mean square error between the measured and estimated path loss of the empirical model. The mean square errors, ? at different height were 2.04, 2.71, 2.90, 1.46, and 1.61dBm. The results are in good agreement with the acceptable international range 1???15dBm (Wu and Yuan, 1998).
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