Wireless Positioning as a Cloud Based Service

In the recent time seamless positioning in hybrid environment is becoming hot topic for large number of researchers. In this paper we will present approach for seamless positioning using modular positioning system implemented as a cloud service. The idea of the proposed system is to provide position estimates in both indoor and outdoor environments by using different positioning modules. Currently we have implemented three positioning modules - GPS module, Wi-Fi module and GSM module. Each of the modules have different role in the system. GPS should provide positioning information mainly in outdoor environment, Wi-Fi module should be used mainly in indoor environment and GSM module should provide position estimates in case that GPS and Wi-Fi positioning modules are not able to estimate position of the device. For example due to low number of received signals or poor quality of signals. In the proposed system positioning GSM and Wi-Fi modules utilize fingerprinting approach for the position estimation.