Indoor Wi-Fi Localization with LOS/NLOS Determination Scheme Using Dual-Band AP 


Vol. 40,  No. 8, pp. 1643-1654, Aug.  2015


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  Abstract

With standardization of IEEE 802.11n, APs with the 2.4GHz and 5GHz dual-band capability have widely been deployed over a metropolitan area by individuals and internet service providers. Moreover, due to the increasing attentions on indoor-localization technique using Wi-Fi, the need for LOS and NLOS determination scheme is increasing to enhance accuracy of the localization. In this paper, we propose a novel LOS/NLOS determination technique by using different radio attenuation characteristics in different frequency bands and different mediums. Based on this technique, we designed a LOS/NLOS-aware indoor localization scheme. The proposed LOS/NLOS determination algorithm can be used when the distance between an user device and an AP is unknown, and the proposed localization scheme provides very accurate room-level position information. We validated the proposed scheme by implementing it on Android smart phones.

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  Cite this article

[IEEE Style]

K. Kim, S. K. Lee, J. Jung, S. Yoo, H. Kim, "Indoor Wi-Fi Localization with LOS/NLOS Determination Scheme Using Dual-Band AP," The Journal of Korean Institute of Communications and Information Sciences, vol. 40, no. 8, pp. 1643-1654, 2015. DOI: .

[ACM Style]

Kangho Kim, Suk Kyu Lee, Jongtack Jung, Seungho Yoo, and Hwangnam Kim. 2015. Indoor Wi-Fi Localization with LOS/NLOS Determination Scheme Using Dual-Band AP. The Journal of Korean Institute of Communications and Information Sciences, 40, 8, (2015), 1643-1654. DOI: .

[KICS Style]

Kangho Kim, Suk Kyu Lee, Jongtack Jung, Seungho Yoo, Hwangnam Kim, "Indoor Wi-Fi Localization with LOS/NLOS Determination Scheme Using Dual-Band AP," The Journal of Korean Institute of Communications and Information Sciences, vol. 40, no. 8, pp. 1643-1654, 8. 2015.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880