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Direction of estimation approach for collaborative localization in wireless sensor networks

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4 Author(s)
Alhasanat, A.I. ; Sch. of Electr., Electron. & Comput. Eng., Newcastle Univ., Newcastle upon Tyne, UK ; Sharif, B.S. ; Tsimenidis, C.C. ; Boussakta, S.

In this paper, a collaborative localization technique based on the direction of estimation (DoE) is proposed. Two directions, border-to-centre B-C and centre-to-border C-B, are investigated and their location accuracies are evaluated. The results show that the B-C method approach outperforms the C-B method based on the root-mean square error (RMSE) and Cramer-Rao bound (CRB). The new B-C DoE method is demonstrated using different deployment strategies and node densities. The simulation results show that the B-C DoE algorithm decreases the accumulated errors of location estimation approximately by 12% over conventional collaborative algorithms; in addition its performance is clearly superior to the performance of other DoE methods.

Published in:

Signal Processing and Information Technology (ISSPIT), 2009 IEEE International Symposium on

Date of Conference:

14-17 Dec. 2009