Spectrum sharing in the sky and space: a survey

L Zhang, Z Wei, L Wang, X Yuan, H Wu, W Xu - Sensors, 2022 - mdpi.com
In order to achieve the vision of seamless wireless communication coverage, a space–air–
ground integrated network is proposed as a key component of the sixth-generation (6G) …

An inverted L‐strip loaded ground with hollow semi‐hexagonal four‐element polarization diversity UWB‐MIMO antenna

VR Balaji, T Addepalli, A Desai, A Nella… - Transactions on …, 2022 - Wiley Online Library
A four‐element multiple‐input‐multiple‐output (MIMO) antenna with modified substrate
geometry is proposed. The antenna comprises a hollow semi‐hexagonal‐shaped …

A novel design of spike-shaped miniaturized 4× 4 MIMO antenna for wireless UWB network applications using characteristic mode analysis

AC Suresh, TS Reddy, BTP Madhav, S Alshathri… - Micromachines, 2023 - mdpi.com
In this article, a 4× 4 miniaturized UWB-MIMO antenna with reduced isolation is designed
and analyzed using a unique methodology known as characteristic mode analysis. To …

Beamforming design for max‐min SINR in RIS‐based hybrid relaying

M Xu, M Mao, Y Feng, T Li, R Shi, Y He - IET Communications, 2023 - Wiley Online Library
Reconfigurable intelligent surface (RIS) technology is regarded as one of the important
technologies for future 6G mobile communication networks. However, RIS can only …

Self restorable intra data center interconnect based on multimode fiber and free-space optics

J Mirza, A Raza, A Atieh, S Iqbal… - Optical …, 2021 - spiedigitallibrary.org
We demonstrate a high data rate and low-cost OM4 multimode fiber (MMF) and free-space
optics (FSO)-based self-restorable 2× 100 Gbps per wavelength intra data center …

Design of Optical-Wireless IR-UWBoF Systems with Spectral Line Suppression Capabilities

AE Perez-Ramos, S Villarreal-Reyes… - Electronics, 2022 - mdpi.com
Impulse-Radio Ultra-Wide Band (IR-UWB) over Fiber (IR-UWBoF) has been proposed to
interconnect IR-UWB-based deployments separated by hundreds of meters or even …

A compact dual-element UWB-MIMO antenna with single band-notched characteristics

N Dalakoti, P Jain - Frequenz, 2024 - degruyter.com
In this paper, a UWB MIMO (multi-input multi-output) antenna working from 3.3 GHz to 10
GHz with a single band notch at 4.5 GHz has been proposed. The antenna comprises of two …

[PDF][PDF] Adoption of social media for effective marketing by micro-hospitality businesses in KwaZulu-Natal, South Africa

T Nkosana - 2022 - openscholar.dut.ac.za
The rise in popularity of social media as a marketing instrument has fundamentally changed
the way in which small to medium enterprises, and small hospitality businesses in particular …

A Single Laser and Fiber Based Duplex Data Transmission to Multiple Users in a Passive Optical Link

M Khalid, S Ghafoor - 2021 International Conference on …, 2021 - ieeexplore.ieee.org
A passive optical link for duplex data transmission operating at 20 Gb/s is designed using a
single laser and fiber. A transmission distance of 55 km is achieved by providing a cost …

Duplex Baseband Signal Transmission Over Free Space Optical Link Employing Carrier Reuse

Z Shamsi - 2022 - researchsquare.com
With increasing IoT and a plethora of multimedia applications being used, there is an ever-
increasing demand for bandwidth-intensive applications. Communication networks …