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A cost-minimization algorithm for fast location tracking in mobile wireless networks

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A cost-minimization algorithm for fast location tracking in mobile wireless networks
Location tracking is one of the most important issues in providing real-time applications over wireless networks due to its effect to quality of service (QoS), such as end-to-end delay, bandwidth utilization, and connection dropping probability. In this paper, we study cost minimization for locating mobile users under delay constraints in mobile wireless networks. Specifically, a new location tracking algorithm is developed to determine the position of mobile terminals under delay constraints, while minimizing the average locating cost based on a unimodal property. We demonstrate that the new algorithm not only results in minimum locating cost, but also has a lower computational complexity compared to existing algorithms. Furthermore, detailed searching procedures are discussed under both deterministic and statistic delay bounds. Numerical results for a variety of location probability distributions show that our algorithm compares favorably with existing algorithms.
Wenye Wang, Guoliang Xue
Added 11 Dec 2010
Updated 11 Dec 2010
Type Journal
Year 2006
Where CN
Authors Wenye Wang, Guoliang Xue
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