Kaveh Pahlavan
Worcester Polytechnic Institute
293Publications
43H-index
8,223Citations
Publications 293
Newest
Julang Ying1
Estimated H-index: 1
(Worcester Polytechnic Institute),
Kaveh Pahlavan43
Estimated H-index: 43
(Worcester Polytechnic Institute)
Currently, the most popular indoor geolocation technique used in smart device is the RSS-based Wi-Fi localization. The general accuracy of Wi-Fi localization in around 10–15 m. To improve this accuracy in indoor areas, site survey is commonly used to collect a signature data base. With the emergence of smart buildings and the IoT to connect the sensors for the smart building, a number of low power sensor devices with diversified power levels will be deployed in the building. The radiated RSS fro...
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Published on Feb 27, 2019
Julang Ying1
Estimated H-index: 1
,
Kaveh Pahlavan43
Estimated H-index: 43
,
Liyuan Xu2
Estimated H-index: 2
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Published on Jan 1, 2019in IEEE Reviews in Biomedical Engineering
Umair Khan6
Estimated H-index: 6
(Worcester Polytechnic Institute),
Sergey N. Makarov16
Estimated H-index: 16
(Worcester Polytechnic Institute)
+ 3 AuthorsKaveh Pahlavan43
Estimated H-index: 43
(Worcester Polytechnic Institute)
Location estimation within the human body by means of wireless signals is becoming popular for a variety of purposes, including wireless endoscopy using camera pills. The precision of wireless ranging in any medium is contingent upon the methodology employed. Two of the most popular wireless tracking methods are received signal strength (RSS) and time of arrival (TOA). The scope of this study is an assessment of the precision of TOA- and RSS-based ranging in the proximity of anthropomorphic tiss...
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Published on Jan 1, 2018in IEEE Access 3.56
Liyuan Xu2
Estimated H-index: 2
(University of Science and Technology Beijing),
Jie He12
Estimated H-index: 12
(University of Science and Technology Beijing)
+ 3 AuthorsQin Wang11
Estimated H-index: 11
(University of Science and Technology Beijing)
To find the relative positional relationship accurately and efficiently without pre-installed infrastructure in emergent scenarios like firefighting, we proposed a rotating-anchor based indoor geolocation system using time of arrival (TOA) technique in this paper. In this system, the positioning problem is regarded as a template-matching problem to estimate direction of the target. Based on preliminary results, further measurements that the tester held the locator and turned around continuously ...
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Umair Khan6
Estimated H-index: 6
(Worcester Polytechnic Institute),
Yunxing Ye (Audi)+ 2 AuthorsKaveh Pahlavan43
Estimated H-index: 43
(Worcester Polytechnic Institute)
In this paper, we compute and examine two-way localization limits for an RF endoscopy pill as it passes through an individuals gastrointestinal (GI) tract. We obtain finite-difference time-domain and finite element method-based simulation results position assessment employing time of arrival (TOA). By means of a 3-D human body representation from a full-wave simulation software and lognormal models for TOA propagation from implant organs to body surface, we calculate bounds on location estimator...
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Published on Apr 1, 2018
Liyuan Xu2
Estimated H-index: 2
(University of Science and Technology Beijing),
Jie He12
Estimated H-index: 12
(University of Science and Technology Beijing)
+ 3 AuthorsQin Wang11
Estimated H-index: 11
(University of Science and Technology Beijing)
In emergent scenarios, such as firefighting, the rescuer can be guided to the trapped person efficiently with the knowledge of relative positional relationship. In this paper, we presented a body motion assisted indoor geolocation system using time-of-arrival (TOA) and received-signal-strength (RSS) values of ultra-wide-band (UWB) signal, in which the human body acts as a single reference point. Measurements of TOA and RSS of UWB signal with different settings have been conducted in typical indo...
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Published on Jan 1, 2018
Chen Li (Worcester Polytechnic Institute), Yu Li (Worcester Polytechnic Institute)+ 2 AuthorsKaveh Pahlavan43
Estimated H-index: 43
(Worcester Polytechnic Institute)
The use of consumer drones has increased greatly in the last few years. It is important in many situations to be able to determine the location of unwanted drones for the sake of privacy, security, and safety. In this paper, a localization system is designed to determine the location of an unwanted drone in an outdoor line of sight (LOS) situation by using its wireless signal transmitted for communication with the controller. Two algorithms using the received signal strength (RSS) of the unwante...
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Published on Oct 1, 2017 in Personal, Indoor and Mobile Radio Communications
Julang Ying1
Estimated H-index: 1
(Worcester Polytechnic Institute),
Kaveh Pahlavan43
Estimated H-index: 43
(Worcester Polytechnic Institute),
Xinrong Li19
Estimated H-index: 19
(Worcester Polytechnic Institute)
With the emergence of the Internet-of-Things (IoT), a number of low-power RF devices with diversified power levels will be deployed in the smart buildings. The radiated Received-Signal-Strength (RSS) from these devices can be used to improve the precision of the commonly used RSS-based Wi-Fi localization. In this paper, we introduce an analytical framework for calculation of the Cramer-Rao Lower Bound (CRLB) in an environment with variable radiated powers from sensors to complement the Wi-Fi loc...
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Fardad Askarzadeh1
Estimated H-index: 1
(Worcester Polytechnic Institute),
Kaveh Pahlavan43
Estimated H-index: 43
(Worcester Polytechnic Institute)
+ 3 AuthorsUmair Khan6
Estimated H-index: 6
(Worcester Polytechnic Institute)
In line-of-sight (LoS) conditions, the accuracy of time-of-arrival (ToA) based localization has proven to be superior to the received-signal-strength (RSS) and the angle-of-arrival (AoA) localization techniques. The accuracy of TOA ranging is limited to unexpected ranging errors caused by the human body obstructing the direct path (DP) between a transmitter and a receiver. Validated analysis of this effect is a challenging problem, and this paper proposes an analytical Uniform Geometrical Theory...
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