Browsing by Subject "Concave-convex procedure"
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Item Open Access A concave-convex procedure for TDOA based positioning(IEEE, 2013) Gholami, M. R.; Gezici, Sinan; Strom, E. G.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.