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A Novel Fading-Tolerant High-Accuracy Localization Algorithm Using Distributed Space-Time Block Codes

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3 Author(s)
Xingkai Bao ; Dept. of Electr. & Comput. Eng., Lehigh Univ., Bethlehem, PA ; Jing Li ; Das, S.

In wireless sensor networks, localization in indoor environment suffers from non-LOS (line-of-sight) and multi-path fading. In this paper, a new localization algorithm is proposed, which makes essential use of distributed space-time-codes (DSTC) to combat fading. By cleverly devising DSTC and employing a novel ML synchronization technique, the proposed algorithm exploits the full benefits of TDOA (time-difference-of-arrival) techniques and provides a greater accuracy than the localization methods reported previously. Simulation results show that the new algorithm performs robustly in a variety of conditions.

Published in:

Global Telecommunications Conference, 2008. IEEE GLOBECOM 2008. IEEE

Date of Conference:

Nov. 30 2008-Dec. 4 2008