Advantage of Non-Periodic Leaky Coaxial Cable Structures for Indoor Positioning

A severe drawback of using RF (Radio Frequency) Fingerprinting for indoor localization is the laborious effort to calibrate the radio map. Especially in case of environmental changes recalibration becomes necessary. The approach of our research project WIPoS (Wireless Indoor Positioning System) is to solve this problem by appropriate RF engineering and optimized methods. In former publications it has been shown that using leaking feeder cables using wireless local area networks (WLAN) has an important advantage that the fingerprints are more insensitive to environmental changes than using omnidirectional antennas. This paper compares the performance of two different types of leaky feeder cables in a long hallway scenario using UMTS and WLAN as wireless system technologies. We can show that using radiating cables have some advantages versus omnidirectional antennas and that UMTS is an alternative system technology to WLAN for RF-Fingerprinting.

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Radiating cable for indoor localization using UMTS

Birkel

Weber

Collmann

2012

2012 Ubiquitous Positioning, Indoor Navigation, and Location Based Service (UPINLBS)

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Positioning estimation in public transport systems by leaky coaxial cables

Engelbrecht

Forster

Michler³

et al. 2012

2012 9th Workshop on Positioning, Navigation and Communication

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In recent years, indoor positioning has become more and more important for industrial and commercial usage. Advanced approaches using leaky coaxial cables (LCX) not only for radio coverage have been developed. This paper deals with the application of LCXs for indoor localization in a public transport test scenario, run by the Fraunhofer Institute for Transportation and Infrastructure Systems IVI Dresden. In this scenario different systems were tested in a real-vehicle environment and compared to each other. In addition those results are contrasted with a synthetic indoor-test carried out in a corridor of the University of Applied Sciences Dresden, in the following referred to as "academic" scenario. Furthermore, the positioning accuracy, which could be achieved by using standard LCXs and two reference systems are demonstrated

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Advantage of Non-Periodic Leaky Coaxial Cable Structures for Indoor Positioning

Cited by 2 publications

References 9 publications

Radiating cable for indoor localization using UMTS

Radiating cable for indoor localization using UMTS

Positioning estimation in public transport systems by leaky coaxial cables

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