Results 1 to 10 of about 522,559 (296)

Comprehensive Simulation Framework for Space–Air–Ground Integrated Network Propagation Channel Research [PDF]

Sensors, 2023
The space–air–ground integrated network (SAGIN) represents a pivotal component within the realm of next-generation mobile communication technologies, owing to its established reliability and adaptable coverage capabilities.
Zekai Zhang, Shaoyang Song, Jingzehua Xu, Ziyuan Wang, Xiangwang Hou, Ming Zeng, Wei Men, Yong Ren   +7 more
doaj   +2 more sources

LTE RSRP, RSRQ, RSSNR and local topography profile data for RF propagation planning and network optimization in an urban propagation environment [PDF]

Data in Brief, 2018
In the design of 5 G cellular communication to guarantee quality signal reception at every point within a coverage area, fundamental knowledge of the channel propagation characteristics is vital. A correct knowledge of electromagnetic wave propagation is
Oluyomi Simpson, Yichuang Sun
doaj   +4 more sources

Wireless Channel Propagation Models Evaluation

Revista Cubana de Ingeniería, 2012
In the design of wireless communications systems, channel modelling is an efficient alternative to predict the path loss. In this paper we present a comparative study between Okumura, Hata, Walfisch-Bertoni and Walfisch-Ikegami propagation models.
Raikel Bordón López, Reinier Alonso Quintana, Samuel Montejo Sánchez   +2 more
doaj   +2 more sources

Millimetre-Wave Propagation Channel Based on NYUSIM Channel Model With Consideration of Rain Fade in Tropical Climates

IEEE Access, 2022
The impact of atmospheric attenuation on wireless communication links is much more severe and complicated in tropical regions. That is due to the extreme temperatures, intense humidity, foliage and higher precipitation rain rates with large raindrop ...
Asma Ali Budalal, Ibraheem Shayea, Md. Rafiqul Islam, Marwan Hadri Azmi, Hafizal Mohamad, Sawsan Ali Saad, Yousef Ibrahim Daradkeh   +6 more
doaj   +1 more source

A Wideband Channel Model for Body Area Networks in Circular Metallic Indoor Environments

IEEE Access, 2021
In this paper, the wideband characterization of the propagation channel in circular metallic indoor environments is addressed, regarding Body Area Networks and 5G small cells, an analytical model for the dependence of the mean delay and the average delay
Filipe D. Cardoso, Manuel M. Ferreira, Slawomir J. Ambroziak, Luis M. Correia   +3 more
doaj   +1 more source

Bandwidth Dependence of the Propagation Channel in Circular Metallic BAN Environments

IEEE Access, 2023
In this paper, the bandwidth dependence of the propagation channel for Body Area Networks (BANs) in circular metallic environments is addressed and models are proposed to evaluate the appropriate short-term fading margins that should be considered as a ...
Manuel M. Ferreira, Filipe D. Cardoso, Slawomir J. Ambroziak, Luis M. Correia   +3 more
doaj   +1 more source

Investigation of QoS Performance Evaluation over 5G Network for Indoor Environment at Millimeter Wave Bands [PDF]

International Journal of Electronics and Telecommunications, 2019
One of the crucial advancements in next-generation 5G wireless networks is the use of high-frequency signals specifically those are in the millimeter wave (mm-wave) bands.
Faizan Qamar, MHD Nour Hindia, Talib Abbas, Kaharudin Bin Dimyati, Iraj S. Amiri   +4 more
doaj   +1 more source

Investigation of Parameters Affecting Underwater Communication Channel [PDF]

Журнал інженерних наук, 2020
Underwater communication has become a widely studied area in recent years and showed great potential to be an area of research. Acoustic communication is often preferred in underwater communication due to its suitability for an underwater diffusion ...
Aydin S., Onur T. O.
doaj   +1 more source

5G Positioning and Mapping with Diffuse Multipath [PDF]

, 2020
5G mmWave communication is useful for positioning due to the geometric connection between the propagation channel and the propagation environment. Channel estimation methods can exploit the resulting sparsity to estimate parameters(delay and angles) of ...
Kulmer, Josef, Wen, Fuxi, Witrisal, Klaus, Wymeersch, Henk   +3 more
core   +3 more sources

Simulation and Measurement Data-Based Study on Fat as Propagation Medium in WBAN Abdominal Implant Communication Systems

IEEE Access, 2021
This paper presents comprehensive study on fat as propagation medium in abdominal implant communication system at low ultrawideband (UWB) frequency range 3.75-4.25 GHz.
Mariella Sarestoniemi, Carlos Pomalaza-Raez, Chaimaa Kissi, Jari Iinatti   +3 more
doaj   +1 more source