Journal of Beijing University of Posts and Telecommunications

  • EI核心期刊

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2011, Vol. 34 ›› Issue (1): 126-129.doi: 10.13190/jbupt.201101.126.zhangyh

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Wireless Cooperative Localization in the NextGeneration  Mobile Communication System

  

  • Received:2010-02-22 Revised:2010-07-12 Online:2011-02-28 Published:2011-02-28

Abstract:

To enhance the precision of wireless localization in the traditional mobile network, a wireless cooperative localization algorithm is proposed for the nextgeneration mobile communication system by employing the cooperative communication between the mobile stations (MS). The cooperative localization problem is solved by nonlinear optimization theory. With that this problem is converted to the linear least square problem, finally the location is estimated by the GaussNewton algorithm. Simulation shows that, when GaussNewton algorithm is applied in the cooperative localization, it is almost converged and the times for convergence (the converging speed) is about 2~3. When there are two or more than two reference terminals (RT) involved in the cooperative localization, and the standard deviation of the distance measured by RT is less than 50m, the root mean square error of the location estimate is less than 100m.

Key words: cooperative localization, cooperative communication , time of arrival