Multipath-aided cooperative network localization using convex optimization

Determining the location of a mobile device using radio or acoustic signals for distance measurement in the face of multipath propagation is a challenging task. In this paper the problem of multipath-aided cooperative localization is formulated as an optimization problem using a geometric model. Multipath-aided network localization exploits multipath propagation to improve the identifiability and performance of localization. The novel multipath-aided cooperative positioning (macop) algorithm, which uses semidefinite programming relaxation, is proposed to solve this problem. Simulation results show a significant improvement in localization performance compared to existing methods.