Results 21 to 30 of about 1,802,343 (290)
Sensors, 2020 Although various linear log-distance path loss models have been developed for wireless sensor networks, advanced models are required to more accurately and flexibly represent the path loss for complex environments.
Han-Shin Jo +4 more
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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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Polarimetric distance-dependent models for large hall scenarios [PDF]
, 2016 A comprehensive polarimetric distance-dependent model of the power delay profile (PDP) and path gain is proposed. The model includes both specular multipath components (SMCs) and dense multipath components (DMC), the latter being modeled with an ...
Cheng, Shiqi +7 more
core +3 more sources
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
doaj +1 more source
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
openaire +1 more source
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
doaj +1 more source
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
doaj +1 more source
The Distribution of Path Losses for Uniformly Distributed Nodes in a Circle [PDF]
, 2008 When simulating a wireless network, users/nodes are usually assumed to be distributed uniformly in space. Path losses between nodes in a simulated network are generally calculated by determining the distance between every pair of nodes and applying a ...
Bharucha, Z., Haas, Harald
core +2 more sources
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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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
doaj +1 more source