A concave-convex procedure for TDOA based positioning
Author
Gholami, M. R.
Gezici, Sinan
Strom, E. G.
Date
2013Source Title
IEEE Communications Letters
Print ISSN
1089-7798
Publisher
IEEE
Volume
17
Issue
4
Pages
765 - 768
Language
English
Type
ArticleItem Usage Stats
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Abstract
This letter investigates the time-difference-of-arrival based positioning problem in wireless sensor networks. We consider the least-mean absolute, i.e., the ℓ1 norm, minimization of the residual errors and formulate the positioning problem as a difference of convex functions (DC) programming. We then employ a concave-convex procedure to solve the corresponding DC programming. Simulation results illustrate the improved performance of the proposed approach compared to existing methods. © 1997-2012 IEEE.
Keywords
DC programmingWireless sensor network
Concave-convex procedure
D-C programming
Residual error
Electrical engineering
Mathematical models
Wireless sensor networks