Indoor positioning system techniques and security

Nowadays location based techniques are used various fields such as traffic navigation, map services, etc. Because people spend a lot of time in the indoor place, it is important for users and service providers to get exact indoor positioning information. There are many technologies to get indoor location information like Wi-Fi, Bluetooth, Radio Frequency Identification (RFID), etc. In spite of importance of IPS, there is no standard for IPS techniques. In addition because of characteristic of data, security and privacy problems become issue. This paper introduces the IPS techniques and analyzes each IPS techniques in terms of cost, accuracy, etc. Then introduce related security threats.