Results 61 to 70 of about 220,177 (244)

A Three-State Received Signal Strength Model for Device-Free Localization [PDF]

IEEE Transactions on Vehicular Technology, 2017
The indoor radio propagation channel is typically modeled as a two-state time-variant process where one of the states represents the channel when the environment is static, whereas the other state characterizes the medium when it is altered by people. In this paper, the aforementioned process is augmented with an additional state.
Yigitler, Huseyin, Jantti, Riku, Kaltiokallio, Ossi   +3 more
openaire   +3 more sources

Phase Angle as an Early Functional Biomarker of Cancer‐Related Fatigue in Pediatric Oncology: A Prospective Longitudinal Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Pediatric cancer remains a leading cause of morbidity and mortality worldwide, particularly in low‐and middle‐income countries. Cancer treatment may impair nutritional status, alter body composition, and exacerbate cancer‐related fatigue (CRF).
Luís Carlos Lopes‐Junior, Luiz Claudio Barreto Silva Neto, Fabiano Kenji Haraguchi, Letícia Batista de Azevedo, Marcelo Brenner Nascimento Carlini, Raphael Manhães Pessanha, Mariana Rabello Laignier, Wesley Rocha Grippa, Tania Mara Lopes Bitti Bortolini, Gláucia Zouain‐Figueiredo, Regina Aparecida Garcia de Lima, Liliana Vasquez   +11 more
wiley   +1 more source

Proximity-Based Adaptive Indoor Positioning Method Using Received Signal Strength Indicator

Applied Sciences
In this paper, we propose a proximity-based adaptive positioning algorithm to address the challenge of positioning errors in indoor localization based on RSSI (received signal strength indicator). When positioning by trilateration, if a receiver is close
Jae-hyuk Yoon, Hee-jin Kim, Soon-kak Kwon   +2 more
doaj   +1 more source

A Grid-Based Localization Algorithm for Wireless Sensor Networks Using Connectivity and RSS Rank

IEEE Access, 2018
To improve localization accuracy and reduce system costs, a new range-free localization algorithm for wireless sensor networks using connectivity and received signal strength (RSS) rank is proposed.
Zengfeng Wang, Hao Zhang, Tingting Lu, T. Aaron Gulliver   +3 more
doaj   +1 more source

A digital receiver signal strength detector for multi-standard low-IF receivers [PDF]

Advances in Radio Science, 2018
Abstract. This paper presents a receiver signal strength detector based on a discrete Fourier transform implementation. The energy detection algorithm has been designed and measured using a custom multi-standard transceiver ASIC with a low-IF receiver at 0.5, 1 and 2 MHz IF.
Saalfeld, Tobias, Piwczyk, Tobias, Wunderlich, Ralf, Heinen, Stefan   +3 more
openaire   +3 more sources

On Hierarchical Composite Endpoints in Pediatric Cancer Supportive Care: Illustrative Examples From Two Multi‐Center Phase‐III Randomized Clinical Trials

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric supportive care clinical trials often involve multiple clinically important outcomes, complicating trial interpretation. Hierarchical composite endpoints (HCEs) provide a framework to integrate key outcomes according to clinical importance.
Willem H. Collier, Mark Zobeck, Adam J. Esbenshade, Christopher C. Dvorak, Lillian Sung, David Freyer, Sarah Alexander, Etan Orgel, Nicole J. Ullrich, Zach Prudowsky, Brian Fisher, Caitlin W. Elgarten   +11 more
wiley   +1 more source

Indoor Received Signal Strength Indicator Measurements for Device-Free Target Sensing

Engineering Proceedings
For applications such as home surveillance systems and assisted living for elderly care, sensing capabilities are essential for tasks such as locating, determining the approximate position of a person, or identifying the status of a person (static or ...
Alex Zhindon-Romero, Cesar Vargas-Rosales, Fidel Rodriguez-Corbo   +2 more
doaj   +1 more source

A Population‐Based Study on Childhood Aplastic Anemia—Incidence, Outcomes, and Health‐Related Quality of Life

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Childhood aplastic anemia (AA) is a rare disease, and both the disease itself and its treatment cause significant morbidity. We aimed to determine the contemporary incidence of childhood AA in Finland, to compare the clinical characteristics of AA against inherited bone marrow failure syndromes (IBMFS) and refractory cytopenia of ...
Lauri‐Matti Kulmala, Riitta Niinimäki, Tytti Pokka, Anu Huurre, Liisa Järvelä, Sauli Palmu, Tuuli Pöyhönen, Pauliina Utriainen, Henri Aarnivala   +8 more
wiley   +1 more source

Received signal strength difference–based tracking estimation method for arbitrarily moving target in wireless sensor networks

International Journal of Distributed Sensor Networks, 2018
The surveillance system, which is mainly used for detecting and tracking moving targets, is one of the most significant applications of wireless sensor networks.
Zixi Jia, Bo Guan
doaj   +1 more source

Localization Accuracy Improvement of a Visible Light Positioning System Based on the Linear Illumination of LED Sources

IEEE Photonics Journal, 2017
As a new technique of indoor localization, visible light positioning has the advantages of high accuracy and antielectromagnetic interference. Received signal strength (RSS) based visible light positioning method is easy to implement because it requires ...
Nan Wu, Lihui Feng, Aiying Yang
doaj   +1 more source