Institute of Computer Application Technology, Hangzhou Dianzi University, Hangzhou, China 310018

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Abstract—The rapid development of mobile devices and mobile Internet increases demands for location-based services. In outdoor environments, the mobile devices can obtain precise positioning through GPS localization. While in indoor environments, it is difficult to receive GPS signal. Researchers have proposed many methods to produce relative position rather than physical position. In this paper, we propose a new localization approach called OA-Loc which utilizes outdoor mobile devices’ GPS information for precise reference points. And with the RSSI between outdoor and indoor devices it could help the latter to obtain physical position. We analyze in detail the working principle of the approach, and provide a detailed design. We also implement our technique on mobile devices and evaluate it in real-world scenarios. The results show that our approach has high feasibility and decent accuracy.

Index Terms—indoor localization, mobile devices, outdoor assisted

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Cite: Peng Liu, Xiaojun Zhou, "OA-Loc: Supporting Virtual Users in Outdoor Assisted Indoor Localization," Journal of Computers vol. 9, no. 4, pp. 1014-1019, 2014.