WLAN and Bluetooth Positioning in Smart Phones
- 15 October 2012
- book chapter
- Published by IGI Global
Abstract
Although the short range radio frequency technologies such as WLAN (Wireless Local Area Network) and Bluetooth were originally designed for the purpose of wireless communication, they have been widely adopted as common signals of opportunity for positioning in smart phones for both indoors and outdoors. The cell identifier and radio signal strength are the most common observables used for positioning. The applicable position methods include Cell-ID, fingerprinting, and trilateration. Fingerprinting is the most common approach, which can provide a positioning accuracy of even 2-5 meters indoors using either the pattern recognition algorithm or the probabilistic algorithm; however, the obtainable accuracy depends on the positioning environment. The objective of this chapter is to present the WLAN and Bluetooth positioning methodologies and explain the related positioning algorithms. The chapter covers an introduction of the topic, descriptions of the observables, the positioning algorithms, and the implementation issues of the positioning solutions. The chapter is concluded with a short section of future research directions followed by a brief conclusion.Keywords
This publication has 22 references indexed in Scilit:
- A practical implementation of indoor location-based services using simple WiFi positioningJournal of Location Based Services, 2008
- Position Measurement using BluetoothIEEE Transactions on Consumer Electronics, 2006
- Bluetooth-based Indoor Proximity Sensing for Nursing Context AwarenessPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2005
- Gaussian Class Multivariate Weibull Distributions: Theory and Applications in Fading ChannelsIEEE Transactions on Information Theory, 2005
- Positioning with IEEE 802.11b wireless LANPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2004
- Markov Localization of Wireless Local Area Network ClientsPublished by Springer Nature ,2004
- Bluetooth and WLAN coexistence: challenges and solutionsIEEE Wireless Communications, 2003
- On indoor position location with wireless LANsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2003
- Location sensing and privacy in a context-aware computing environmentIEEE Wireless Communications, 2002
- A Probabilistic Room Location Service for Wireless Networked EnvironmentsPublished by Springer Nature ,2001