Raphael E. Nkrow
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View article: Gait Device Pairing in Unconstrained Environments With Signal Morphing
Gait Device Pairing in Unconstrained Environments With Signal Morphing Open
People carry consumer devices, like smartphones and watches, as part of daily life to provide connectivity and data collection for various consumer applications. Consumers and manufacturers are becoming increasingly aware of data security …
View article: NLOS Identification and Mitigation for Time-based Indoor Localization Systems: Survey and Future Research Directions
NLOS Identification and Mitigation for Time-based Indoor Localization Systems: Survey and Future Research Directions Open
One hurdle to accurate indoor localization using time-based networks is the presence of Non-Line-Of-Sight (NLOS) and multipath signals, affecting the accuracy of ranging in indoor environments. NLOS identification and mitigation have been …
View article: NLOS Identification and Mitigation with WiFi: A Performance Evaluation in Dynamic Environments
NLOS Identification and Mitigation with WiFi: A Performance Evaluation in Dynamic Environments Open
Indoor-based navigation or positioning technology plays a key role in ensuring efficient navigation of autonomous robotic systems and persons in industrial environments and has been an active research field for the past decades. One key ch…
View article: Physical Layer Key Sharing for an Off-The-Shelf UWB Module
Physical Layer Key Sharing for an Off-The-Shelf UWB Module Open
Physical Layer Key sharing has become a popular topic in today's literature, as it could act as an alternative to computationally expensive RSA protocols. Its importance is emphasized by a number of resource-constrained, battery-powered au…
View article: Transfer Learning-Based NLOS Identification for UWB in Dynamic Obstructed Settings
Transfer Learning-Based NLOS Identification for UWB in Dynamic Obstructed Settings Open
Positioning with ultrawideband (UWB) is prominent among industrial localization systems, due to its high-range resolution attributes and lower cost. However, one notable challenge with UWB positioning in industrial environments is the prev…
View article: Knock-to-Enter Authentication: A Rhythm-Based Smartphone Authentication Mechanism
Knock-to-Enter Authentication: A Rhythm-Based Smartphone Authentication Mechanism Open
With 2-factor authentication practices becoming ever more popular, the need for developing new authentication procedures is gaining ever more traction. Rhythm-based gesture authentication appears to be a promising area of research as it en…
View article: UWB-Based NLOS Identification and Mitigation: A Performance Evaluation in Dynamic Settings
UWB-Based NLOS Identification and Mitigation: A Performance Evaluation in Dynamic Settings Open
In the fourth industrial revolution (Industry 4.0), robotics and autonomous navigational systems are essential for smart agriculture. Industrial smart agriculture relies heavily on autonomous navigational systems, which have important uses…
View article: Phone Pick-up Authentication: A Gesture-Based Smartphone Authentication Mechanism
Phone Pick-up Authentication: A Gesture-Based Smartphone Authentication Mechanism Open
Passcodes, fingerprints and now facial scans, smart-phone authentication is becoming ever faster and faster and easier to use. Providing one time authentication mechanism that operate quickly an integrate ever more seamlessly into their cu…
View article: Wi-Fi Fine Time Measurement: Is it a Viable Alternative to Ultrawideband for Ranging in Industrial Environments?
Wi-Fi Fine Time Measurement: Is it a Viable Alternative to Ultrawideband for Ranging in Industrial Environments? Open
Time-based ranging approaches have long been used for indoor positioning due to their reliability and accuracy. Two-way ranging (TWR) with ultrawideband (UWB) has often been utilized for indoor positioning systems (IPSs) in industrial sett…
View article: A Survey on Fusion-Based Indoor Positioning
A Survey on Fusion-Based Indoor Positioning Open
Demands for indoor positioning based services (IPS) in commercial and military fields have spurred many positioning systems and techniques. Complex electromagnetic environments (CEEs) may, however, degenerate the accuracy and robustness of…
View article: Indoor Localization Using Visible Light via Two-Layer Fusion Network
Indoor Localization Using Visible Light via Two-Layer Fusion Network Open
In visible light communication (VLC)-based indoor localization environment, the instability and uncertainty power of emitting LEDs and other factors, as obstacles between transmitters and receivers, will lead the fluctuation of the receive…