Analysis of Large Scale Propagation Models & RF Coverage Estimation

The main task in designing of any wireless communication system is to predict the coverage of the planned system using some mathematical path loss models before the original design of the system. Propagation path loss models are very much useful mathematical tools to calculate signal attenuation and it can be used as a controlling factor for the system performance and coverage. The propagation models may give different results if they are used in different environments other than in which they were designed. In this paper we compare the different large scale propagation models with measured field data and The large scale propagation performance of hata, sui, bertoni and ecc-33 models has been compared by varying mobile station antenna height, transmitter –receiver distance and base station antenna height. During the test drive the field measurement data is taken in urban environment in INDIA at GSM frequency with the help of spectrum analyzer. Keywords— Large scale propagation models, Received signal Strength (RSS), Coverage area.