A UWB-Based Indoor Positioning System Employing Neural Networks

Li, Binghao; Zhao, Kai; Sandoval, Eduardo Benítez

doi:10.1007/s41651-020-00059-2

“…The TOA technique is based on the computation of signal propagation time between the transmitter and receiver when both of them need to have accurate synchronized time clocks. As well as, light speed multiplied by time equals distance [45]. For location computation, the emitting time and the propagation time are required.…”

Section: Fig 7 Trilateration Location Measurement Configurationmentioning

confidence: 99%

“…The low energy consumption of UWB results in a large bandwidth with high multipath immunity. Although, UWB is strengthened in multipath fading by communication with high speed, high time resolution, high data rate, and short-wavelength [7], [99]. Another important aspect of UWB is its capacity to employ low carrier frequencies, where signals may more effectively penetrate obstacles; it is also free of interference because its spectrum is quite distinct.…”

Section: Ultra-wide Band Technologymentioning

confidence: 99%

A Comprehensive Review of Indoor/Outdoor Localization Solutions in IoT era: Research Challenges and Future Perspectives

Asaad¹,

Maghdid²

2021

Preprint

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<p>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.</p>

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“…The round-trip time of flight (RTT) or received phase method is also used in some systems for range estimation. The duration of time in milliseconds that takes for a data packet to be transmitted from the transponder (BS/WAP) to a target device (Smartphone) plus the time it takes for a response packet to be received back at the BS/WAP is referred to as Round Trip Time (RTT), as presented in Equation (7). Then, the RTT is used to find the TOF and distance as presented in Equation ( 8) and ( 9) respectively.…”

Section: Fig 10 Rtt Localization Techniquementioning

confidence: 99%

“…Another important aspect of UWB is its capacity to employ low carrier frequencies, where signals may more effectively penetrate obstacles; it is also free of interference because its spectrum is quite distinct. As a result of all of these characteristics, UWB technology is a suitable option for indoor positioning [7], [99].…”

Section: Ultra-wide Band Technologymentioning

confidence: 99%

“…To tackle these issues in indoor settings, a variety of solutions utilizing various technologies have been presented. Frequency modulation (FM) [6], Ultra-wideband A Comprehensive Review of Indoor/Outdoor Localization Solutions in IoT era: Research Challenges and Future Perspectives Safar M. Asaad and Halgurd S. Maghdid, Member, IEEE T (UWB) [7], Radio Frequency Identification (RFID) [8], Wi-Fi [9], Bluetooth [10], ZigBee [11], [12] and cellular networks (including LTE and 5G) [13], [14], inertial sensors and wearable devices [15] are examples of these technologies. Furthermore, some hybrid approaches combine the advantages of two or more technologies to enhance indoor localization [15].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A Comprehensive Review of Indoor/Outdoor Localization Solutions in IoT era: Research Challenges and Future Perspectives

Asaad¹,

Maghdid²

2021

Preprint

View full text Add to dashboard Cite

<p>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.</p>

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