Outdoor Localization Solutions in IoT era: Research Challenges and
Future Perspectives
Abstract
The number of connected mobile devices and Internet of Things (IoT) is
growing around us, rapidly. Since, most of the people daily activities
are relying on these connected things or devices. Specifically, this
past year (with COVID-19) changed daily life in abroad and this is
increased the use of IoT enabled technologies in health sector, work,
and play. Further, the most common service via using these technologies
is the localization/positioning service for different applications
including: geo-tagging, billing, contact tracing, health-care system,
point-of-interest recommendations, social networking, security, and
more. Despite the availability of a large number of localization
solutions in the literature, the precision of localization cannot meet
the needs of consumers. For that reason, this paper provides an in-depth
investigation of the existing technologies and techniques in the
localization field, within the IoT era. Furthermore, the benefits and
drawbacks of each technique with enabled technologies are illustrated
and a comparison between the utilized technologies in the localization
is made. The paper as a guideline is also going through all of the
metrics that may be used to assess the localization solutions. Finally,
the state-of-the-art solutions are examined, with challenges and
perspectives regarding indoors/outdoors environments are demonstrated.