Non-line-of-sight (NLOS) propagation of radio signals can significantly degrade the
performance of ultra-wideband localization systems indoors, it is hence crucial to mitigate …

We consider the potential for positioning with a system where antenna arrays are deployed
as a large intelligent surface (LIS), which is a newly proposed concept beyond massive multi …

In this paper, we address the time-of-arrival (TOA) based localization problem in an adverse
environment, where line-of-sight (LOS) signal propagation between the source and the …

Geometric dilution of precision (GDOP) has been widely used as an accuracy metric for
navigation and tracking systems. Since high accuracy in a positioning system requires both …

Non-line-of-sight (NLOS) error mitigation for the time-of-arrival (TOA) localization has been
extensively studied, but these methods cannot be directly applied for the time-difference-of …

An unknown-position sensor can be localized if there are three or more anchors making time-
of-arrival (TOA) measurements of a signal from it. However, the location errors can be very …

Nonline-of-sight (NLOS) propagation is one of the challenges in radio positioning.
Significant attention has been drawn to the mitigation of the NLOS effect in recent years. This …

In this paper, motivated by the fact that precisely positioning a flying unmanned aerial
vehicle (UAV) by passive radio frequency (RF) measurements are being troubled by the …

Accurate localization is critical to facilitate location services for Internet of Things (IoT). It is
particular challenging to provision localization based on nonline-of-sight (NLOS) signals …

Accurate wireless positioning of mobile agents is challenging in non-line-of-sight (NLOS)
propagation environments due to unknown range or angle biases. In this paper, we develop …