Effect of channel interference on indoor wireless local area network positioning

Eddie C.L. Cha, George Baciu, S. C. Mak

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

8 Citations (Scopus)

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).
Original languageEnglish
Title of host publication2010 IEEE 6th International Conference on Wireless and Mobile Computing, Networking and Communications, WiMob'2010
Pages239-245
Number of pages7
DOIs
Publication statusPublished - 1 Dec 2010
Event6th Annual IEEE International Conference on Wireless and Mobile Computing, Networking and Communications, WiMob'2010 - Niagara Falls, ON, Canada
Duration: 11 Oct 201013 Oct 2010

Conference

Conference6th Annual IEEE International Conference on Wireless and Mobile Computing, Networking and Communications, WiMob'2010
CountryCanada
CityNiagara Falls, ON
Period11/10/1013/10/10

ASJC Scopus subject areas

  • Computational Theory and Mathematics
  • Computer Networks and Communications
  • Communication

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