WhereMoPS: an indoor geolocation system

Locating users and terminals accurately within buildings is an important technology for mobile applications. However indoor geolocation systems presented in the past are often restricted to certain applications or sensor systems and mostly provide location information in a context-specific manner. The WhereMoPS system is a flexible research platform for advanced indoor geolocation systems which can be extended to integrate additional sensing subsystems and positioning algorithms. The location information is distributed by means of the Mobile Positioning Protocol (MPP) originally designed for location-based services in GSM networks. This paper describes the WhereMoPS system design and implementation as well as the modifications necessary to adapt MPP to indoor environments.