علي نظري

The process of designing the radio access area of mobile networks begins with predicting the required number of cells and accurately locating base stations. Then, the performance of the cells must be continuously monitored so that operators can optimize the network's quality and coverage against environmental changes and user consumption patterns. Drive tests are a common method for collecting data on network status in different geographical locations. In this method, all geographical points, including all streets and paths of an area, are traversed to determine the network service status at these points. Network operators use valuable data obtained from this method to optimize mobile networks. This process is costly and time-consuming for network operators. Methods that have so far focused on optimizing drive test operations have involved developing models based on initial drive test data to predict signal status. In this research, a method is presented for optimizing the data collection process in mobile network drive tests. Instead of traversing all paths in an area, a shorter alternative route is traversed, reaching points in a region that do not have adequate status with lower costs. Additionally, a criterion for eva‎luating a route for drive tests is introduced, and the proposed route is eva‎luated using real data from previous drive tests and the introduced criterion. Our proposed method consists of four steps. In the initial step, a rectangular section of the map is selected and divided into $K$ smaller rectangular areas. In the second step, in each small rectangular area, $N$ critical points that we believe should be checked in the drive test are identified. These points may not be on the streets and paths, so in the next step, using the map-matching method, the selected points are mapped onto the streets. In the final step, an algorithm for finding the optimal route for traversing these points is proposed. The results of this research indicate that the proposed method has managed to reduce the traversal path, thereby reducing the time and costs required for drive tests. These achievements can significantly help mobile network operators in optimizing their strategies for better and more efficient network coverage.

شبكه‌هاي تلفن همراه , درايو تست , بهينه‌سازي مسير , قدرت سيگنال دريافتي

Mobile networks , Drive test , Route optimization , Reference Signal Receive Power

Ali Nazari

Abolfazl Diyanat