Abstract
Abstract. Cell phones have become an inherent part of human life and have grown rapidly in the last decade. In India, there are nearly 120 crore cell phone users which require setting up of cell phone tower at an appropriate location to transmit the signals. A signal strength that is measured in (dBm) keeps on varying from one location to another. Over the decades, there has been a great deal of concern about placing a cell phone tower to manage adequate signal strength for an area. During transmission, the signals get affected by the position of building, ground and the distances the signals need to travel before reaching any receiver or user location. Existing researches focus on the requirement of a suitable number of cell phone towers for a big area in a GIS environment. Depending on the building and other infrastructure present in an area an optimal location can be determined for setting up the cell phone tower. However, the detailed 3D data is required for it. In this paper, a LiDAR-based technique is attempted. Using the point cloud data of the RGIPT campus, features like building, ground, obstruction points, etc are extracted. To determine the transmission paths for the signal, building/object boundary(es), etc. coming in the path(s) between the cell phone tower and the receiver location are determined. Once the detailed paths for the signal transmission i.e, direct path, or path after diffraction (around the buildings), and/or reflection (from the wall and ground) are determined, terrain parameters (distance, path difference, attenuation, etc) are ascertained. These are then used to model and determine the relative signal strength for any receiver location. The position of cell phone tower is then tested for optimal XY, and Z position to ascertain the best location for setting up the cell phone tower. The method is verified against various path determination algorithms. A centroid and viewshed based approach is adopted here. The technique is generic, novel and essentially work with LiDAR point data without needing DEM and can be applied for any terrain condition.
Highlights
Cell phone has become essential in social life
A method is planned for the determination of optimal location for setting up the cell phone tower to provide adequate signal strength in an area
The proposed methodology worked on different levels starting with LiDAR data acquisition, feature extraction, signal transmission path determination, the relative loss of signal strengths determination and determining the optimal location for setting up the cell phone tower
Summary
Cell phone has become essential in social life. There has been unparalleled growth in the cell phone industry during the last decade in India. Existing researches primarily work on GIS environment to determine the requirement of several cell phone towers for a very large area, without focusing the optimal location of cell phone tower(s) or how the signal can reach any receiver location maintaining optimal strength (AL-Hamami & Hashem, 2011; Babar & Kaur, 2013; George, 2013; Kashyap et al, 2015; Tayal et al, 2017). As determination of transmission paths from source, i.e., cell phone tower to receiver points play a very important role towards determination of path loss and strength of the signal, efforts are made here to determine them and use those to ascertain the optimal location for setting up the cell phone tower for an area.
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