Results 41 to 50 of about 1,802,343 (290)

A Simple Analytical Model for THz Band Path Loss

open access: yesIEEE Communications Letters, 2023
In this letter, we devise a frequency, distance, and altitude-dependent, analytical model for THz band path loss. This model is obtained from cascaded regression of transmittance data from Line-by-Line Radiative Transfer Model (LBLRTM) propagation analysis tool, considering altitudes from the sea-level to 1 km, distances from 1 m to 100 m and ...
Mikail Erdem   +4 more
openaire   +4 more sources

Analisis Prediksi Path Loss Teknologi Seluler 5G Pada Sel Micro Urban Wilayah Kota Bandung

open access: yesJurnal Elkomika, 2021
ABSTRAK Implementasi teknologi seluler 5G di Indonesia perlu dilakukan kajian dalam beberapa aspek. Analisis nilai path loss pada sistem seluler merupakan pendekatan dalam aspek large scale fading untuk menghitung cakupan layanan.
DWI ARYANTA
doaj   +1 more source

Study on 3GPP Rural Macrocell Path Loss Models for Millimeter Wave Wireless Communications

open access: yes, 2017
Little research has been done to reliably model millimeter wave (mmWave) path loss in rural macrocell settings, yet, models have been hastily adopted without substantial empirical evidence.
MacCartney Jr., George R.   +1 more
core   +1 more source

Cellular system information capacity change at higher frequencies due to propagation loss and system parameters [PDF]

open access: yes, 2012
In this paper, mathematical analysis supported by computer simulation is used to study cellular system information capacity change due to propagation loss and system parameters (such as path loss exponent, shadowing and antenna height) at microwave ...
Anang, K.A.   +4 more
core   +1 more source

A Statistical Calibration Method of Propagation Prediction Model Based on Measurement Results [PDF]

open access: yesInternational Journal of Electronics and Telecommunications, 2020
Radio environment maps (REMs) are beginning to be an integral part of modern mobile radiocommunication systems and networks, especially for ad-hoc, cognitive, and dynamic spectrum access networks.
Jan M. Kelner   +3 more
doaj   +1 more source

A new heuristic geometrical approach for finding non-coplanar multiple edge diffraction ray paths [PDF]

open access: yes, 2006
Rooftop diffraction can contribute significantly to the propagation path loss in outdoor microcellular environments. For non-coplanar multiple edges, the finding of exact ray paths requires a complex algebraic analysis that is infeasible for rapid ...
Ng, KH, Nix, AR, Tameh, EK
core   +3 more sources

Stochastic Analysis of Non-slotted Aloha in Wireless Ad-Hoc Networks [PDF]

open access: yes, 2010
In this paper we propose two analytically tractable stochastic models of non-slotted Aloha for Mobile Ad-hoc NETworks (MANETs): one model assumes a static pattern of nodes while the other assumes that the pattern of nodes varies over time.
Blaszczyszyn, Bartek, Muhlethaler, Paul
core   +8 more sources

In-body Path Loss Model for Homogeneous Human Tissues [PDF]

open access: yesIEEE Transactions on Electromagnetic Compatibility, 2012
A wireless body area network (WBAN) consists of a wireless network with devices placed close to, attached on, or implanted into the human body. Wireless communication within human body experiences loss in the form of attenuation and absorption. A path loss (PL) model is thus necessary to identify these losses in homogeneous medium which is proposed in ...
Kurup, Divya   +3 more
openaire   +2 more sources

Analysis of Downlink Uplink Decoupled Dense Heterogeneous Cellular Network based on User Association using Multi-Slope Path Loss Model

open access: yesAdvances in Electrical and Computer Engineering, 2019
Keeping in consideration the expected need of node densification of heterogeneous cellular networks in near future, it is imperative that more accurate path loss models be used when analyzing heterogeneous cellular networks performance in terms of user
ALI, S., ASLAM, M. I., AHMED. I., J.
doaj   +1 more source

An Automated Indoor Localization System for Online Bluetooth Signal Strength Modeling Using Visual-Inertial SLAM

open access: yesSensors, 2021
Indoor localization is becoming increasingly important but is not yet widespread because installing the necessary infrastructure is often time-consuming and labor-intensive, which drives up the price.
Simon Tomažič, Igor Škrjanc
doaj   +1 more source

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