Integrity monitoring in WLAN positioning systems

Sri Phani Yerubandi; Bhargav Kalgikar; Maheedhar Gunturu; David Akopian; Philip Chen

doi:10.1117/12.818338

4 May 2009 Integrity monitoring in WLAN positioning systems

Sri Phani Yerubandi, Bhargav Kalgikar, Maheedhar Gunturu, David Akopian, Philip Chen

Proceedings Volume 7351, Mobile Multimedia/Image Processing, Security, and Applications 2009; 735109 (2009) https://doi.org/10.1117/12.818338
Event: SPIE Defense, Security, and Sensing, 2009, Orlando, Florida, United States

Abstract

Indoor Positioning Systems using WLANs have become very popular in recent years. These systems are spawning a new class of applications like activity recognition, surveillance, context aware computing and location based services. While Global Positioning System (GPS) is the natural choice for providing navigation in outdoor environment, the urban environment places a significant challenge for positioning using GPS. The GPS signals can be significantly attenuated, and often completely blocked, inside buildings or in urban canyons. As the performance of GPS in indoor environments is not satisfactory, indoor positioning systems based on location fingerprinting of WLANs is being suggested as a viable alternative. The Indoor WLAN Positioning Systems suffer from several phenomena. One of the problems is the continual availability of access points, which directly affects the positioning accuracy. Integrity monitoring of WLAN localization, which computes WLAN positioning with different sets of access points is proposed as a solution for this problem. The positioning accuracy will be adequate for the sets which do not contain faulty or the access points which are offline, while the sets with such access points will fail and they will report random and inaccurate results. The proposed method identifies proper sets and identifies the rogue access points using prediction trajectories. The combination of prediction and correct access point set selection provides a more accurate result. This paper discusses about integrity monitoring method for WLAN devices and followed by how it monitors and developing the application on mobile platforms.

Citation Download Citation

Sri Phani Yerubandi, Bhargav Kalgikar, Maheedhar Gunturu, David Akopian, and Philip Chen "Integrity monitoring in WLAN positioning systems", Proc. SPIE 7351, Mobile Multimedia/Image Processing, Security, and Applications 2009, 735109 (4 May 2009); https://doi.org/10.1117/12.818338

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available