Results 81 to 90 of about 1,796,652 (193)

Downlink Analysis for a Heterogeneous Cellular Network

, 2014
In this paper, a comprehensive study of the the downlink performance in a heterogeneous cellular network (or hetnet) is conducted. A general hetnet model is considered consisting of an arbitrary number of open-access and closed-access tier of base ...
Brown, Timothy X, Liu, Madhusudhanan, Prasanna, Restrepo, Juan G., Youjian   +4 more
core   +1 more source

Indoor Positioning with CNN and Path-Loss Model Based on Multivariable Fingerprints in 5G Mobile Communication System. [PDF]

Sensors (Basel), 2022
Wang Y, Zhao K, Zheng Z, Ji W, Huang S, Ma D.   +5 more
europepmc   +1 more source

Effects of initial state fluctuations on jet energy loss

, 2012
The effect of initial state fluctuations on jet energy loss in relativistic heavy-ion collisions is studied in a 2+1 dimension ideal hydrodynamic model. Within the next-to-leading order perturbative QCD description of hard scatterings, we find that a jet
Che Ming Ko, Hanzhong Zhang, L. D. Landau, Taesoo Song   +3 more
core   +1 more source

Sensitivity of Azimuthal Jet Tomography to Early Time Energy-Loss at RHIC and LHC

, 2011
We compute the jet path-length dependence of energy-loss for higher azimuthal harmonics of jet-fragments in a generalized model of energy-loss that can interpolate between pQCD and AdS/CFT limits and compare results with Glauber and CGC/KLN initial ...
, Appelshäuser H, Arnold P B, Barbara Betz, Betz B Gyulassy M Torrieri G, Giorgio Torrieri, Gubser S S, Horowitz W A Gyulassy M, Iancu E Venugopalan R, Jia J, Jia J Horowitz W A Liao J, Lee Y-J, Miklos Gyulassy, Snellings R, Velkovska J   +14 more
core   +1 more source

Improved transmission path loss model of mine electromagnetic wave

Gong-kuang zidonghua, 2013
In view of problems that basic path loss model based on received signal strength indicator (RSSI) is established on visual range between sending node and receiving node and it is not conformed to transmission characteristics of mine electromagnetic wave,
PENG Xia
doaj  

Optimal Deployments of UAVs With Directional Antennas for a Power-Efficient Coverage [PDF]

, 2019
To provide a reliable wireless uplink for users in a given ground area, one can deploy Unmanned Aerial Vehicles (UAVs) as base stations (BSs). In another application, one can use UAVs to collect data from sensors on the ground.
Guo, Jun, Jafarkhani, Hamid, Walk, Philipp   +2 more
core   +1 more source

LoRa-Based IoT Recommendations for Surabaya City Drainage Channel Using Multi-Node Multi-Hop Communication

Jurnal Rekayasa Elektrika
This paper focuses on the development of a multi-hop LoRa (Long-Range) communication network for real-time monitoring of urban drainage Internet of Things (IoT), specifically simulating the flood-prone area along the drainage channel of Jalan Jawa ...
Muhammad Arya Izzulhaq, Rusminto Tjatur Widodo, Hary Oktavianto   +2 more
doaj   +1 more source

Optimal model for path loss predictions using feed-forward neural networks

Cogent Engineering, 2018
In this paper, an optimal model is developed for path loss predictions using the Feed-Forward Neural Network (FFNN) algorithm. Drive test measurements were carried out in Canaanland Ota, Nigeria and Ilorin, Nigeria to obtain path loss data at varying ...
Segun I. Popoola, Emmanuel Adetiba, Aderemi A. Atayero, Nasir Faruk, Carlos T. Calafate   +4 more
doaj   +1 more source

Measurements and Analysis of Large-Scale Path Loss Model at 14 and 22 GHz in Indoor Corridor

IEEE Access, 2018
Fifth generation wireless communications will exploit the enormous chunk of bandwidth available at millimeter-wave frequency bands. Accordingly, an accurate and simple path loss model is critical for indoor environments, where deployment is likely to ...
Nicholas O. Oyie, Thomas J. O. Afullo
doaj   +1 more source

Coal mine roadway base station site selection method based on ray-tracing path loss model

Gong-kuang zidonghua
The narrow and branched structure of coal mine roadways makes it difficult for 5G signals to achieve full coverage, and the high path loss within the roadways limits wireless signal transmission.
WANG Yifei, WANG Yiwen, XU Yidan, HUANG Xiaojun   +3 more
doaj   +1 more source