Results 11 to 20 of about 52,986 (291)

Statistical Characterization of $\kappa{ - }\mu$ Shadowed Fading [PDF]

open access: yesIEEE Transactions on Vehicular Technology, 2014
This work has been submitted to the IEEE for possible ...
Jose F Paris
openaire   +4 more sources

Correlated link shadow fading in multi-hop wireless networks [PDF]

open access: yesIEEE Transactions on Wireless Communications, 2009
Accurate representation of the physical layer is required for analysis and simulation of multi-hop networking in sensor, ad hoc, and mesh networks. This paper investigates, models, and analyzes the correlations that exist in shadow fading between links in multi-hop networks.
Agrawal, Piyush, Patwari, Neal
openaire   +4 more sources

Shadow Fading Correlation in High-Speed Railway Environments

open access: yesIEEE Transactions on Vehicular Technology, 2014
In the design of diversity and fast handover schemes for high-speed railways (HSRs), a better understanding of the shadow fading correlation properties is required. In this paper, both auto- and cross-correlation models of shadow fading in HSR environments are proposed based on a large set of measurements with 6146 cells in China.
He, Ruisi   +3 more
openaire   +4 more sources

Double Shadowing the Rician Fading Model [PDF]

open access: yesIEEE Wireless Communications Letters, 2019
In this letter, we consider a Rician fading envelope which is impacted by dual shadowing processes. We conveniently refer to this as the double shadowed Rician fading model which can appear in two different formats, each underpinned by a different physical signal reception model.
Nidhi Simmons   +4 more
openaire   +3 more sources

Network coverage using MI waves for underwater wireless sensor network in shadowing environment

open access: yesIET Microwaves, Antennas & Propagation, 2021
In high permittivity media, such as underground, underwater, and biological tissues the electromagnetic (EM) wave fails to provide reliable communication due to high path loss.
Sunandita Debnath
doaj   +1 more source

Path Loss Model Based on Machine Learning Using Multi-Dimensional Gaussian Process Regression

open access: yesIEEE Access, 2022
For beyond fifth-generation (5G) and future wireless communications, spatial consistency that represents the correlation between propagation channel characteristics in close proximity has become one of the major issues in channel modeling to describe ...
Ki Joung Jang   +6 more
doaj   +1 more source

Spectrum Map Construction Based on Optimized Sensor Selection and Adaptive Kriging Model [PDF]

open access: yesRadioengineering, 2022
Spectrum map (SM) is an important tool to reflect the spectrum usage in the electromagnetic environment. To address the problems of low precision and poor efficiency in the SM construction, this paper develops a novel SM construction approach based on ...
Z. Ding   +5 more
doaj  

Cell-Free Massive MIMO versus Small Cells [PDF]

open access: yes, 2017
A Cell-Free Massive MIMO (multiple-input multiple-output) system comprises a very large number of distributed access points (APs)which simultaneously serve a much smaller number of users over the same time/frequency resources based on directly measured ...
Ashikhmin, Alexei   +4 more
core   +2 more sources

Shadow fading cross-correlation of multi-frequencies in curved subway tunnels [PDF]

open access: yes, 2014
Radio propagation characteristics in curved tunnels are important for designing reliable communications in subway systems. In this paper, shadow fading is characterized, and cross-correlation property of shadow fading for different frequency bands is ...
Briso Rodríguez, César   +4 more
core   +1 more source

Wireless Three-hop Relay Environment with Line-of-Sight: Investigation and Performance Analysis

open access: yesJournal of Communications Software and Systems, 2021
Lately, the investigation of multi-hop relays is increased in both, academia and engineering practice. Multi-hop relay is introduced to enable data transmission between base station and mobile user dividing great distance into two or more segments to ...
Dragana Krstic   +4 more
doaj   +1 more source

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