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Home  >  Volume 22 (2012)

Path Loss Measurement and Model Analysis of 1.8GHz Wireless Network in Benin City, Nigeria. by Atuba S.O, 2Azi S.O, 3Omasheye R.O, and 4Ojo K.O. Volume 22 (November, 2012), pp 155 – 160
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The frequencies of GSM service in Nigeria are 900 and 1800 MHZ and like all radio frequencies they are susceptible to path loss. In this work, field strength data was collected in Benin City, Nigeria and was used to calculate the path loss suffered by the wireless network signals. The measured path loss is compared with the theoretical path loss values estimated by the COST-231 Hata model, the ECC 33 and the LEE model. Also simple Hata-like models for urban environment were derived based on path loss measurements in the 1800 MHZ band. The optimized model is validated using standard deviation error analysis, and the results show that the new optimized model predicts path loss in urban environment with a root mean square error of less than 3dB, standard normal deviation of less than + 8dB, mean prediction error of less than + 2.27dB and had a path loss exponent of 3.91. The model developed can be used in network planning, radio network optimization and can also help telecommunication providers to improve their service. 

Keywords: Path loss Models, Path loss Exponent, Model Optimization.