Spatial Sampling Requirements for Received Signal Level Measurements in Cellular Networks of Suburban Area

Abdlmagid Basere, Ivica Kostanic
2017 Advances in Science, Technology and Engineering Systems  
A process for the determination of a required spatial resolution in the collection of the Received Signal Level (RSL) is discussed. This method considers RSL measurements as a three dimensional surface that is sampled through the data collection process. In addition, it is difficult to collect RSL measurements for an entire coverage area because of many obstacles, for example, buildings, lakes, and vegetation. Thus, the estimation of the coverage area is necessary for locations for which it is
more » ... ns for which it is hard to collect the RSL. Kriging is a well-known technique for estimation of unknown values at specific locations, and it has shown very good results. The distance factor in Kriging has never been studied before for a coverage area. A drive test is used to collect RSL measurements, and they are gathered in different distance sizes, a procedure is known as binning, to form the coverage area. Kriging is used to estimate the entire RSL surface in bin sizes that are 200x200, 100x100, 50x50, and 25x25 meters of resolution. Using a 2-D Fourier analysis, the cutoff frequency for the Fourier transform of the RSL surface is determined. The spatial sampling resolution and the cutoff frequency are linked through a Nyquist sampling criterion. The approach was experimentally verified in a typical suburban environment. The results show that the spatial resolution requirement is between 50 and 100m. Kriging Coverage area estimation Received signal level Coverage verification in cellular systems ASTESJ
doi:10.25046/aj020134 fatcat:j5t2vmeq6nfshcixqobroctnve