Results 211 to 220 of about 346,804 (259)

Transparent Perovskite Light‐Emitting Diodes with Conductive Oxide Top Electrodes

Advanced Materials, EarlyView.
Transparent perovskite light‐emitting diodes (TrPeLEDs) enable simultaneous display and transparency, expanding application possibilities. Using a metal oxide buffer layer and pulsed laser deposition, TrPeLEDs with diverse compositions and architectures are demonstrated.
Michele Forzatti, Sergio Martínez‐Saiz, Morena Cervino, Edoardo Stanzani, Sandra Jenatsch, Qingsen Zeng, Joo Sung Kim, Dong‐Hyeok Kim, Eojin Yoon, Tae‐Woo Lee, Daniel Tordera, Henk J. Bolink   +11 more
wiley   +1 more source

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Path loss model for crowd counting

2017 7th IEEE International Conference on Control System, Computing and Engineering (ICCSCE), 2017
Crowd counting using wireless sensing relies on either participatory or non-participatory methods. In both cases, the algorithm developed would predict the number of people or their density within the area monitored, for the purpose of crowd safety and management. An alternative to such approaches is the path loss modeling. A model is proposed to count
Solahuddin Yusuf Fadhlullah, Widad Ismail   +1 more
openaire   +1 more source

Validation of path loss by heuristic prediction tool with path loss and RSSI measurements

2010 IEEE Antennas and Propagation Society International Symposium, 2010
The characterization of path loss in indoor environments has been the subject of extensive research and many models have been proposed to make accurate predictions. Statistical models are easy to obtain when a lot of measurement data are available, but their validity is limited to the category of buildings in which the measurements are performed.
D Plets, W Joseph, K Vanhecke, E Tanghe, L Martens, S Bouckaert, I Moerman, P Demeester   +7 more
openaire   +1 more source

Carrier Frequency Effects on Path Loss

2006 IEEE 63rd Vehicular Technology Conference, 2006
To study the carrier frequency effects on path loss, measurements have been conducted at four discrete frequencies in the range 460-5100 MHz. The transmitter was placed on the roof of a 36 meters tall building and the receive antennas were placed on the roof of a van. Both urban and suburban areas were included in the measurement campaign.
Mathias Riback, Jonas Medbo, Jan-Erik Berg, Fredrik Harrysson, Henrik Asplund   +4 more
openaire   +1 more source

Multiplicative based path loss model

International Journal of Communication Systems, 2018
SummaryWe present a newly introduced multiplicative based path loss model for the wireless channel. The model verified with experimental data at 2100 MHz collected across Cyprus in 6 existing microcells in urban, suburban, and rural areas. The new method uses the multiplicative least square fitting model that relates the decibel path loss to the ...
Bülent Bilgehan, Stephen Ojo
openaire   +1 more source

Comparison of Empirical Path Loss Propagation Models with Building Penetration Path Loss Model

International Journal on Communications Antenna and Propagation (IRECAP), 2016
Path loss Propagation models plays a fundamental role in planning and designing of mobile radio communication link. In this paper a building penetration path loss model was developed using AUTOCAD. The model involved the combination of three mechanisms of signal propagation; refraction, reflection and diffraction.
Promise Elechi, Paul Osaretin Otasowie
openaire   +1 more source

Path Loss For Short Range Telemetry

2007
The popular Friis transmission formula is used to evaluate the amount of path loss in free space between the transmit and receive antennas for the design of wireless transceivers. It is could be also used to estimate the path loss for the link of the on-body network when there is no barrier and no body surface in between.
Yong Liu, Kairaz Contractor, Yunjuan Kang   +2 more
openaire   +1 more source

Path Loss Measurements in Sea Port for WiMAX

2007 IEEE Wireless Communications and Networking Conference, 2007
Large scale path loss measurements in sea port are presented. This investigation is useful before deploying worldwide interoperability for microwave access (WiMAX) equipments to provide last mile broadband wireless access (BWA) for ships and boats in the sea port. Measurements were carried out at 5.8 GHz.
Joe Jurianto, S. K. Hazra, S. H. Toh, W. M. Tan, J. Shankar, Vinh Dien Hoang, Masayuki Fujise   +6 more
openaire   +1 more source

Compensation of survivorship bias in path loss modeling

2017 IEEE 28th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC), 2017
In a received signal strength indicator (RSSI)-based path loss estimation where mobile terminals report the decoding results from the received packets, the reported results are strongly affected by the receiver noise. Because low power instantaneous signals cannot be obtained due to the decoding failure, a path loss estimation considering no effects of
Koya Sato, Kei Inage, Takeo Fujii
openaire   +1 more source

Path Loss Measurement and Modeling for Industrial Environment

2019 IEEE 20th International Conference on High Performance Switching and Routing (HPSR), 2019
As industrial production gradually becomes more intelligent, 5G technology has great application prospects in industrial environments. However, the channel in the industrial environment is different from the channel in the other scenarios, and hence need to be characterized specifically.
Ke Zhang, Bin Li 0017, Xiao Tang 0001, Dawei Wang 0001, Linyuan Wei   +4 more
openaire   +1 more source