Tests of smartphone localization accuracy using W3C API and Cell-Id

Location based services (LBS) are considered very relevant for the users of mobile networks. All local events and facts related to area nearby seem to be more important that others which happen in remote places. Localization data is used in all types of services: weather, traffic, tourist info, etc. One of its most important (and regulated by law) applications is providing persons location in case of emergency. This paper presents results of field tests related to assessment of accuracy of two most commonly used localization methods: Cell-Id and W3C Geolocalization. The tests were conducted in the form of test drives along some of the most important roads in Poland. Position of the test vehicle obtained using analyzed methods was logged and compared to localization obtained from the Global Positioning System (GPS). Data collected during test drives was processed and statistical information about localization accuracy was calculated. Results obtained for different methods were compared and conclusions about localization quality are provided. The paper also describes test environment and data model which were used during work being reported.