QoS evaluation and optimization for mobile telecommunication networks using key performance indicators: a case study for kerman city

Process of quality of service (Qos) evaluation and optimization for mobile telecommunication networks is consisted of daily collection of key performance indicators (KPI) reports, determination and fixing of defects, and network testing to ensure the omission of the defects. Drive test is common approach of testing which is time-consuming and expensive due to necessity for experts and equipment. To overcome these limitations, this paper proposes a new software-based testing method using OPTIMA software. Performance of the proposed method together with drive test approach have been studied and evaluated for the 70 BTS sites of Kerman GSM network as the statistical society. The results demonstrate that the proposed method provides performance similar to that of drive test for defect fixing. However, this software method not only removes the dependency to experts and equipment, but also reduces the testing time about one-third compared to the drive test.