Hybrid cooperative positioning based on distributed belief propagation

MA Caceres, F Penna, H Wymeersch… - IEEE Journal on …, 2011 - ieeexplore.ieee.org
IEEE Journal on Selected Areas in Communications, 2011ieeexplore.ieee.org
We propose a novel cooperative positioning algorithm that fuses information from satellites
and terrestrial wireless systems, suitable for GPS-challenged scenarios. The algorithm is
fully distributed over an unstructured network, does not require a fusion center, does not rely
on fixed terrestrial infrastructure, and is thus suitable for ad-hoc deployment. The proposed
message passing algorithm, named H-SPAWN, is described and analyzed. A novel
parametric message representation is introduced, to reduce computational and …
We propose a novel cooperative positioning algorithm that fuses information from satellites and terrestrial wireless systems, suitable for \acs{GPS}-challenged scenarios. The algorithm is fully distributed over an unstructured network, does not require a fusion center, does not rely on fixed terrestrial infrastructure, and is thus suitable for ad-hoc deployment. The proposed message passing algorithm, named \acf{H-SPAWN}, is described and analyzed. A novel parametric message representation is introduced, to reduce computational and communication overhead. Through simulation, we show that \ac{H-SPAWN} improves positioning availability and accuracy, and outperforms hybrid positioning algorithms based on conventional estimation techniques.
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