Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/17818
Title: Effect of channel interference on indoor wireless local area network positioning
Authors: Chan, CLE
Baciu, G 
Mak, SC
Keywords: Channel allocation
Indoor communication
Interference (signal)
Position control
Wireless LAN
Issue Date: 2010
Publisher: IEEE
Source: 2010 IEEE 6th International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob), 11-13 October 2010, Niagara Falls, ON, p. 239-245 How to cite?
Abstract: Localization systems for indoor areas have recently been suggested that make use of existing wireless local area network (WLAN) infrastructure and location fingerprinting approach. However, most existing research work ignores channel interference between wireless infrastructures and this could affect accurate and precise positioning. A better understanding of the properties of channel interference could assist in improving the positioning accuracy while saving significant amounts of resources in the location-aware infrastructure. This paper investigates to what extent the positioning accuracy is affected by channel interference between access points. Two sets of experiments compare how the positioning accuracy is affected in three different channel assignment schemes: ad-hoc, sequential, and orthogonal data is analyzed to understand what features of channel interference affect positioning accuracy. The results show that choosing an appropriate channel assignment scheme could make localization 10% more accurate and reduce the number of access points that are required by 15%. The experimental analysis also indicates that the channel interference usually obeys a right-skewed distribution and positioning accuracy is heavily dependent on channel interference between access points (APs).
URI: http://hdl.handle.net/10397/17818
ISBN: 978-1-4244-7743-2
978-1-4244-7741-8 (E-ISBN)
DOI: 10.1109/WIMOB.2010.5645000
Appears in Collections:Conference Paper

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