6–100 GHz research progress and challenges from a channel perspective for fifth generation (5G) and future wireless communication

2017 ◽  
Vol 60 (8) ◽  
Author(s):  
Jianhua Zhang ◽  
Pan Tang ◽  
Lei Tian ◽  
Zhixue Hu ◽  
Tan Wang ◽  
...  
Keyword(s):  
Wireless Communication ◽  
Research Progress ◽  
Fifth Generation

scholarly journals Comparative Analysis of User Exposure to the Electromagnetic Radiation Emitted by the Fourth and Fifth Generations of Wi-Fi Communication Devices

2020 ◽  
Vol 17 (23) ◽  
pp. 8837
Author(s):  
Annamaria Sârbu ◽  
Simona Miclăuș ◽  
Angela Digulescu ◽  
Paul Bechet
Keyword(s):  
Comparative Analysis ◽  
Energy Density ◽  
Wireless Communication ◽  
Theoretical Analysis ◽  
Human Exposure ◽  
Experimental Validation ◽  
Time Spectrum ◽  
Coding Scheme ◽  
Fifth Generation ◽  
Communication Devices

A suitable metric to describe human exposure to microwaves emitted by wireless communication devices is still incomplete. By using both theoretical analysis and experimental validation (in controlled and real deployed networks), we analyze and compare the specificity of exposure due to data transmissions in different configurations of fourth and fifth generation wireless fidelity (Wi-Fi) standards in the proximity of a mobile device. Measurements made use of the capability of the amplitude probability density incorporated in a real-time spectrum analyzer, proving its agility of highlighting different user exposure profiles. The results are presented comparatively and indicate that, in Wi-Fi networks, the modulation and coding scheme (MCS) should be used together with the duty cycle for an improved exposure assessment. The present work introduces the emitted energy density per bit in describing the user’s exposure to Wi-Fi signals and proves its superiority in characterizing the true levels of exposure for the IEEE 802.11n and 802.11ac standards of communication.

5G/B5G Internet of Things MIMO Antenna Design

Signals ◽  
2022 ◽  
Vol 3 (1) ◽  
pp. 29-37
Author(s):  
Muhammad Ikram
Keyword(s):  
Internet Of Things ◽  
Wireless Communication ◽  
Communication Systems ◽  
Antenna Design ◽  
Slot Antenna ◽  
Fourth Generation ◽  
Mimo Antenna ◽  
Fifth Generation ◽  
Sixth Generation ◽  
Multiple Input

The current and future wireless communication systems, WiFi, fourth generation (4G), fifth generation (5G), Beyond5G, and sixth generation (6G), are mixtures of many frequency spectrums. Thus, multi-functional common or shared aperture antenna modules, which operate at multiband frequency spectrums, are very desirable. This paper presents a multiple-input and multiple-output (MIMO) antenna design for the 5G/B5G Internet of Things (IoT). The proposed MIMO antenna is designed to operate at multiple bands, i.e., at 3.5 GHz, 3.6 GHz, and 3.7 GHz microwave Sub-6 GHz and 28 GHz mm-wave bands, by employing a single radiating aperture, which is based on a tapered slot antenna. As a proof of concept, multiple tapered slots are placed on the corner of the proposed prototype. With this configuration, multiple directive beams pointing in different directions have been achieved at both bands, which in turn provide uncorrelated channels in MIMO communication. A 3.5 dBi realized gain at 3.6 GHz and an 8 dBi realized gain at 28 GHz are achieved, showing that the proposed design is a suitable candidate for multiple wireless communication standards at Sub-6 GHz and mm-wave bands. The final MIMO structure is printed using PCB technology with an overall size of 120 × 60 × 10 mm3, which matches the dimensions of a modern mobile phone.

A REVIEW ON 5G WIRELESS NETWORK IMPLEMENTATION STRATEGIES IN NIGERIA

2021 ◽  
Vol 5 (2) ◽  
pp. 419-427
Author(s):  
Kareem A. Bakare ◽  
Lawal Idris Bagiwa ◽  
M. M. Nafisa ◽  
Auwa Abdulsalam
Keyword(s):  
Communication Network ◽  
Wireless Communication ◽  
Care Delivery ◽  
Implementation Strategies ◽  
Fourth Generation ◽  
New Governance ◽  
5G Networks ◽  
Wireless Communication Network ◽  
Fifth Generation ◽  
5G Network

The 5G networks stand for fifth generation mobile technology and can outperform earlier versions of wireless communication technology. The new technology provides diverse abilities and encourages full networking among countries globally. Fifth Generation (5G) wireless communication network development was an initiative in furtherance to the current Fourth Generation (4G) wireless communication network technology. The 5G networks for future applications in all domains provide prospects for a fully connected society. The proliferation of all connectivity between the devices provides a broader range of new governance, business structures, health care delivery, Economic growth and insecurity reduction which subsequently paves a path towards different industry profiles, such as energy, Communication and manufacturing sectors. This paper discusses the Concept of 5G Network, 5G network implementation strategies and technology requirements, deployment challenges as well as suggestions on the way forward based on Nigerian context

Examination of the fifth-generation vehicular simultaneous wireless information and power transfer cooperative non-orthogonal multiple access network in military scenarios considering time-varying and imperfect channel state information conditions

2021 ◽  
pp. 154851292110330
Author(s):  
Sharnil Pandya ◽  
Patteti Krishna ◽  
Ravi Shankar ◽  
Ankur Singh Bist
Keyword(s):  
Wireless Communication ◽  
Communication Systems ◽  
Multiple Access ◽  
Ad Hoc ◽  
Access Network ◽  
Power Splitting ◽  
Power Transfer ◽  
Amplify And Forward ◽  
Decode And Forward ◽  
Fifth Generation

In a defense scenario, the communicating nodes are mobile and, due to this, the fading channel links become time selective in nature. Non-orthogonal multiple access (NOMA) is a promising technique in modern wireless communication systems, and it is employed in a variety of defense ad hoc wireless communication scenarios where nodes are mobile and it is difficult to estimate the channel coefficients perfectly. NOMA contributes to increased spectral efficiency (SE), firstly by enabling fifth-generation new radio deployment in the 3.5 GHz frequency range, and secondly by employing a simultaneous wireless information and power transfer (SWIPT) time switching and power splitting-based cooperative NOMA (C-NOMA) network where simple radio frequency circuitry is used for energy harvesting. NOMA together with the selective decode-and-forward (S-DF) protocol will increase the SE and energy efficiency simultaneously. The outage probability performance is evaluated for various values of the fading severity parameter and node velocity forming the channel error. It is significant to note that digital S-DF-based SWIPT C-NOMA performs much better than an analog amplify-and-forward-based C-NOMA SWIPT system.

SIMULATION OF MIMO CHANNEL OF FIFTH GENERATION NETWORKS IN MATLAB SIMULINK SYSTEM

2019 ◽  
Author(s):  
Viktor Magnitskiy
Keyword(s):  
Wireless Communication ◽  
Antenna Arrays ◽  
Communication System ◽  
Mimo System ◽  
Mimo Channel ◽  
Matlab Simulink ◽  
Wireless Communication System ◽  
Simulink Model ◽  
Fifth Generation

The article describes the Simulink model of the hardware of the MIMO wireless communication system. The model includes a CRC generator, QPSK, OFDM modulator, and antenna arrays at the transmitter and receiver. The presented model makes it possible to simulate the expensive transmit-receive equipment of the MIMO system, and also illustrates the capabilities of Simulink.

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