Results 21 to 30 of about 346,804 (259)

Probabilistic Path Loss Predictors for mmWave Networks [PDF]

2021 IEEE 93rd Vehicular Technology Conference (VTC2021-Spring), 2021
End-to-end network performance evaluation and dynamic resource provisioning require models that are fast in execution and produce predictions in a probabilistic way, including accuracy estimations. mmWave mobile networks are challenging for the analysis due to the difference in line of sight (LoS) and non-line of sight (NLoS) regimes.
Taha Saleh, Dmitry Petrov, Olav Tirkkonen, Vilho Räisänen   +3 more
openaire   +2 more sources

LoRaWAN Path Loss Measurements in an Urban Scenario including Environmental Effects

Data, 2022
LoRaWAN is a widespread protocol by which Internet of things end nodes (ENs) can exchange information over long distances via their gateways. To deploy the ENs, it is mandatory to perform a link budget analysis, which allows for determining adequate ...
Mauricio González-Palacio, Diana Tobón-Vallejo, Lina M. Sepúlveda-Cano, Santiago Rúa, Giovanni Pau, Long Bao Le   +5 more
doaj   +1 more source

Modeling In vivo Wireless Path Loss

CoRR, 2014
Our long-term research goal is to model the in vivo wireless channel. As a first step towards this goal, in this paper we performed in vivo path loss measurements at 2.4GHz and make a comparison with free space path loss. We calculate the path loss by using the electric field radiated by a Hertzian-Dipole located inside the abdominal cavity.
Yang Liu 0067, Thomas P. Ketterl, Gabriel E. Arrobo, Richard D. Gitlin   +3 more
openaire   +2 more sources

Real-Time Step Length Estimation in Indoor and Outdoor Scenarios

Sensors, 2022
In this paper, human step length is estimated based on the wireless channel properties and the received signal strength indicator (RSSI) method. The path loss between two ankles, called the on-ankle path loss, is converted from the RSSI, which is ...
Zanru Yang, Le Chung Tran, Farzad Safaei, Anh Tuyen Le, Attaphongse Taparugssanagorn   +4 more
doaj   +1 more source

Improving Path Loss Prediction Using Environmental Feature Extraction from Satellite Images: Hand-Crafted vs. Convolutional Neural Network

Applied Sciences, 2022
There is an increased exploration of the potential of wireless communication networks in the automation of daily human tasks via the Internet of Things. Such implementations are only possible with the proper design of networks.
Usman Sammani Sani, Owais Ahmed Malik, Daphne Teck Ching Lai   +2 more
doaj   +1 more source

Analysis of Different Path Loss Propagation Models Based on 4G Walk Test Data [PDF]

Journal of Information Technology Management, 2022
The study of path loss propagation is of high importance in telecommunication, for optimizing the efficiency of wireless communication networks. In this paper, four path loss propagation models; free space path loss (FSPL) model, Okumura model, Okumura ...
Stella Ifeoma Orakwue, Hamza Mohammed Ridha Al-Khafaji   +1 more
doaj   +1 more source

Seismic Resilience Evaluation of High-Rise Frame-Core Tube Structure Considering Structural Network Performance Loss and Repair Path

Buildings
Structural seismic resilience is influenced by both the structural performance loss (loss) and the repair path (path). Some studies ensure the reality of path but lack accuracy of loss.
Jianfeng Lu, Zuohua Li, Jun Teng
doaj   +1 more source

End-to-End Modelling and Simulation of NLOS Sub-6 GHz Backhaul via Diffraction for Internet Connectivity of Rural Areas

IEEE Open Journal of the Communications Society, 2023
Many rural and remote areas around the world still lack access to the Internet due to the high deployment and maintenance costs, the lack of infrastructure, and the low income compared to urban regions.
Muneer M. Al-Zubi, Mohamed-Slim Alouini
doaj   +1 more source

Investigating UAV-Based Applications in Indoor–Outdoor Sports Stadiums and Open-Air Gatherings for Different Interference Conditions beyond 5G Networks

Sensors, 2023
With the onset of 5G technology, the number of users is increasing drastically. These increased numbers of users demand better service on the network. This study examines the millimeter wave bands working frequencies.
Akhil Gupta, Prakhar Saini, Banala Sharath Teja, Giddaluru Shiva Durgesh, Shourabh Kumar Mishra, Anjani Kumar Yadav, Sudeep Tanwar, Fayez Alqahtani, Maria Simona Raboaca, Wael Said   +9 more
doaj   +1 more source

Path loss models based on stochastic rays [PDF]

IET Microwaves, Antennas & Propagation, 2007
In this paper, two-dimensional percolation lattices are applied to describe wireless propagation environment, and stochastic rays are employed to model the trajectories of radio waves. We first derive the probability that a stochastic ray undergoes certain number of collisions at a specific spatial location.
Luoquan Hu, Han Yu, Yifan Chen
openaire   +2 more sources