Results 21 to 30 of about 1,796,652 (193)
Calibration of Wi-Fi-Based Indoor Tracking Systems for Android-Based Smartphones
Remote Sensing, 2019 With the growing development of smartphones equipped with Wi-Fi technology and the need of inexpensive indoor location systems, many researchers are focusing their efforts on the development of Wi-Fi-based indoor localization methods. However, due to the
Miguel Martínez del Horno +2 more
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Applied Sciences, 2022 Modern cellular communication networks are already being perturbed by large and steadily increasing mobile subscribers in high demand for better service quality.
Joseph Isabona +6 more
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Path loss modeling: A GIS-based approach
2020 International Conference on Computational Performance Evaluation (ComPE), 2020 <p>This paper discusses an analysis of Very High Frequency (203.25 MHz and 182.25 MHz) signal strength measurement variation over a sizeable hilly-forested region in the northern part of Aizawl, Mizoram. In this, we discussed the Line of Sight (LOS) analysis using Geographic Information System program and the area assessment within a specified ...
ramesh chandra tiwari, Thaisa Jawhly
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Sensors, 2017 The Global Positioning System demonstrates the significance of Location Based Services but it cannot be used indoors due to the lack of line of sight between satellites and receivers. Indoor Positioning Systems are needed to provide indoor Location Based
Iyad Husni Alshami +3 more
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Applied Sciences, 2022 One of the most critical problems in a communication system is losing information between the transmitter and the receiver. WiMAX (Worldwide Interoperability of Microwave Access) technology is gaining popularity and recognition as a Broadband Wireless ...
Moamen Alnatoor +2 more
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Development of path loss model for 802.11n in large conference rooms [PDF]
, 2011 In this paper, a path loss (PL) model for 802.11n in large conference rooms is determined, based on PL measurements. The PL can be described accurately by a one-slope model with one standard deviation.
Heereman, Frédéric +4 more
core +1 more source
Measurement-Based Characterization and Modeling for Low-Altitude UAV Air-to-Air Channels
IEEE Access, 2019 In this paper, we characterize the unmanned aerial vehicle (UAV) air-to-air (A2A) channel for an 802.11-based low altitude network based on a preliminary measuring result over user datagram protocol (UDP) throughput, latency, received signal strength ...
Tianyu Liu +6 more
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Path Loss Model with Multiple-Antenna
The Journal of Korean Institute of Electromagnetic Engineering and Science, 2014 In this paper, we propose a path loss model with the multiple antennas using diversity efiect. Currently wireless communication systems use the multiple antennas in order to improve the channel capacity or diversity gain. However, until recently, many researches on path loss model only consider geographical environment between the transmitter and the ...
Jun-Hyun Lee +3 more
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Path Loss Prediction Model Development in a Mountainous Forest Environment
IEEE Open Journal of the Communications Society, 2021 We consider a method for developing a radio-wave propagation prediction model in a mountainous forested area. A new path loss development approach uses a free-space path loss (FSPL) model and an empirical path loss model.
Bilguunmaa Myagmardulam +7 more
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A computational model for path loss in wireless sensor networks in orchard environments. [PDF]
, 2014 A computational model for radio wave propagation through tree orchards is presented. Trees are modeled as collections of branches, geometrically approximated by cylinders, whose dimensions are determined on the basis of measurements in a cherry orchard ...
Anastassiu, Hristos T +6 more
core +3 more sources