1.2. Networks & Positioning
Learning Objectives
- You will be able to list the major wireless network types.
- You will be able to relate from the wireless network range to the possible use in a LBS.
- You will be able to explain what positioning methods are available for LBS and how they work basically.
In order to establish a location based service the position of the user has to be known. Depending on the type of the LBS different accuracies are needed. Some LBS require only a position accuracy of hundreds of meters or even kilometres while others require the exact position at some decimetres. According to these needs also different positioning methods are available like satellite based GPS solutions or mobile phone based cell positioning solutions.
The idea of location-based services includes the communication or data exchange possibility between the different components. There can be various mobile and fixed components in a LBS architecture. An example would be a stationary data provider which is accessed via a mobile terminal. Thus having both stationary and mobile devices only wireless communication technologies can be used for location based services.
Communication and Positioning as LBS ComponentsIn this unit an overview about available and upcoming wireless communication as well as positioning technologies is given.
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