In ad hoc position-location networks, location information is obtained through the sequential
estimation of node locations. An unlocalized node can estimate its location based on range …

Many ad hoc network applications rely on nodes having accurate knowledge of their
geographic locations. However, inherent in all localization systems is a degree of error in …

Localization systems typically make use of redundant range or angle measurements from as
many neighbours as possible to reduce location error. In dense networks this comes at the …

Many ad hoc network applications rely on nodes having accurate knowledge of their
geographic locations. However, inherent in all localization systems is a degree of error in …

In this paper, we propose a collaborative localization scheme which utilizes, in addition to
the range estimates to nodes with known locations (anchors), the range estimates between …

Non-line-of-sight (NLOS) signal propagation is a major issue in location estimation. Several
application oriented approaches have been proposed in recent years to mitigate the errors …

It is of paramount importance to obtain accurate node positions in ad hoc networks for
various location-based services. Hop-count based localization provides a low-cost and …

With the increase in demand for ad hoc networks, localization has become a fundamental
and essential solution to manage networks. Among existing localization algorithms, DV-Hop …

Ad-hoc localization systems enable nodes in a sensor network to fix their positions in a
global coordinate system using a relatively small number of anchor nodes that know their …

DV-Hop algorithm produces errors in location estimations due to inaccurate hop size. We
propose a novel localization scheme based on DV-Hop to improve positioning accuracy with …