A New Approach for Measurements of Signal Level Contents in a Real Wireless System in the City of Curitiba, Brazil

摘要

This paper describes a study of the mobile radio signal's attenuation due the environment in the central and urban building-up area of Curitiba's downtown, a Brazilian city in the South of the country with more than two million inhabitants. The original results presented in this work are real life data collected from a major mobile operator in the city and it includes shapes of buildings in the region under study. The propagation model used for mobile radio channels was a free and adjustable model without diffraction. The morphology, the topography, the real images of the downtown and all technical parameters of the used radio-base channel are presented, explained and justified in this study. Only Omni-directional antennas were used and frequency hope was also considered. The analysis of the simulated results obtained using the PRORAD* software with practical data-base, proven that the proposed technique that uses one free propagation model enables the detection of the interference points in a system and uses this technique to avoid critical points; enables to cover a wide range of frequencies and technologies and provides average value of adjacent and co-channel interference over this single propagation model used appears to be viable in the 4G technology; giving appropriate solutions and offering advantages over existing usual techniques.