This paper introduces a review article on indoor localization techniques and technologies.
The paper starts with current localization systems and summarizes comparisons between …

Real-time locating systems (RTLSs) are considered an effective way to identify and track the
location of an object in both indoor and outdoor environments. Various RTLSs have been …

With the rapid development in wireless technologies and the Internet, the Internet of Things
(IoT) is envisioned to be an integral part of our daily lives. Localization-based services are …

With exponential growth in the deployment of Internet of Things (IoT) devices, many new
innovative and real-life applications are being developed. IoT supports such applications …

Existing indoor positioning systems based on Wi-Fi or Bluetooth confront difficulties and
problems, such as low positioning accuracy, unstable, and small-signal coverage. A system …

Acoustic local positioning systems (ALPSs) are an interesting alternative for indoor
positioning due to certain advantages over other approaches, including their relatively high …

Large-scale deployments of the Internet of Things (IoT) are adopted for performance
improvement and cost reduction in several application domains. The four main IoT …

A novel and practical combined weighted (COM-W) method for target localization based on
time difference of arrival (TDOA) is proposed in this paper. For 2-D situations with more than …

With continuous and accelerated urbanization, a large number of location-based services
(LBSs) have shifted from outdoor to indoor. The pervasive smartphone-based localization …

Acoustic localization is a viable solution for high-precision indoor positioning with current
built-in smartphone sensors. However, the Doppler shift produces an additional error in the …