An Study of Indoor Localization Algorithm Based on Imperfect Signal Coverage in Wireless Networks
Existing localization algorithms didn’t consider the important factor of the antenna measuring angles. And most wireless indoor localization algorithms require a site survey process which is time-consuming and labor-intensive. This paper presents a featured region localization algorithm without site survey and discusses the measured angle in different intervals. According to the relationship among the fingerprints sets of the same angle interval, our proposed algorithm is used to find the featured points within the region. Regions of points are determined by calculating Euclidean distance between the points and APs (Access Points). Experiments are conducted in an 8m by 8m laboratory, and results show that this algorithm has superior performance compared with existing algorithms.
Keywordslocalization measured angles site survey featured points
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- 1.Mert, B., Liu, M., Shen, W.M.: Localization in cooperative wireless sensor networks: A review, 438–443 (2009)Google Scholar
- 2.Girod, L., Byehovskiy, V., Elson, J.: Localization tiny sensors in time and space: A case study. In: Proceedings of the 2002 IEEE International Conference on Computer Design, pp. 214–219 (2002)Google Scholar
- 3.Harter, A., Hopper, A., Steggles, P.: The anatomy of a context-aware application. In: Proceeding of the 5th Annual ACM/IEEE International Conference on Mobile Computing and Networking, pp. 59–68. ACM Press (1999)Google Scholar
- 4.Girod, L., Estrin, D.: Robust range estimation using acoustic and multimodal sensing. In: Proceedings of the IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS 2001), pp. 1312–1320. IEEE Robotics and Automation Society (2001)Google Scholar
- 5.Nieulescu, D., Nath, B.: Ad hoc positioning system (APS) using AoA. In: Proceedings of the IEEE INFOCOM, San Franeisco, pp. 1734–1743 (2003)Google Scholar
- 6.He, T., Huang, C., Blum, B.M.: Rang-free localization schemes for large scale sensor networks. In: MobiCom 2003, pp. 81–95 (2003)Google Scholar
- 8.Agpal, R.N., Shrobe, H., Bachrach, J.: Organizing a global coordinate system from Local Information on an Ad Hoc sensor network. In: Proc. of Int. (2003)Google Scholar