In this survey paper, we present an extensive review of the use of RIS in 6G radio
localization, highlighting their pivotal role as a low-cost, energy-efficient technology that …

Wireless positioning technologies hold significant value for applications in autonomous
driving, extended reality (XR), unmanned aerial vehicles (UAVs), and more. With the …

6G networks aim to enable applications like autonomous driving by providing
complementary localization services through key technologies such as non-terrestrial …

Integrated sensing and communication (ISAC) is a key technology for future 6G networks,
enabling sensing and communication services by exploiting a single piece of equipment …

The rapid growth of low-Earth-orbit (LEO) satellites has enabled integrated space-air-ground
networks to provide seamless connectivity to mobile users. However, these networks face …

Abstract The proliferation of Unmanned Aircraft Systems (UAS) leads to a wide range of
legitimate, nuisance, and malicious applications. To address the growing concerns …

An opportunistic navigation receiver that exploits always-on and on-demand 5G downlink
signals is presented. The semi-cognitive receiver operates in two stages:(i) acquisition …

This paper explores the use of non-terrestrial signals of opportunity, specifically the Starlink
Ku-band downlink signal, as a navigation source for a high-altitude platform station (HAPS) …

A localization upper-bound with range measurements to transmitters whose positions are
uncertain is derived. The transmitters' positions uncertainty is known to be bounded by a …

5G mmWave offers a high-precision positioning solution, functioning effectively in both line-
of-sight (LoS) and operable non-line-of-sight (NLoS) conditions. However, in scenarios with …