Measurements of millimeter wave indoor propagation and high-speed digital transmission characteristics at 60 GHz

2002 ◽  
Author(s):  
A. Kato ◽  
T. Manabe ◽  
Y. Miura ◽  
K. Sato ◽  
T. Ihara
Keyword(s):  
Millimeter Wave ◽  
High Speed ◽  
Digital Transmission ◽  
Indoor Propagation ◽  
60 Ghz ◽  
Transmission Characteristics

scholarly journals Strategic Control of 60 GHz Millimeter-Wave High-Speed Wireless Links for Distributed Virtual Reality Platforms

2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Joongheon Kim ◽  
Jae-Jin Lee ◽  
Woojoo Lee
Keyword(s):  
Virtual Reality ◽  
Power Allocation ◽  
Millimeter Wave ◽  
Data Transmission ◽  
Data Center ◽  
High Speed ◽  
Average Energy ◽  
Wireless Transmission ◽  
60 Ghz ◽  
Strategic Control

This paper discusses the stochastic and strategic control of 60 GHz millimeter-wave (mmWave) wireless transmission for distributed and mobile virtual reality (VR) applications. In VR scenarios, establishing wireless connection between VR data-center (called VR server (VRS)) and head-mounted VR device (called VRD) allows various mobile services. Consequently, utilizing wireless technologies is obviously beneficial in VR applications. In order to transmit massive VR data, the 60 GHz mmWave wireless technology is considered in this research. However, transmitting the maximum amount of data introduces maximum power consumption in transceivers. Therefore, this paper proposes a dynamic/adaptive algorithm that can control the power allocation in the 60 GHz mmWave transceivers. The proposed algorithm dynamically controls the power allocation in order to achieve time-average energy-efficiency for VR data transmission over 60 GHz mmWave channels while preserving queue stabilization. The simulation results show that the proposed algorithm presents desired performance.

A Cost-Effective High-Speed Radio over Fibre System for Millimeter Wave Applications

2020 ◽  
Vol 41 (2) ◽  
pp. 177-180
Author(s):  
Abhishek Sharma ◽  
Sushank Chaudhary ◽  
Deepika Thakur ◽  
Vigneswaran Dhasratan
Keyword(s):  
Millimeter Wave ◽  
Wavelength Division Multiplexing ◽  
High Frequency ◽  
High Speed ◽  
Cost Effective ◽  
Optical Fibres ◽  
60 Ghz ◽  
Wavelength Division ◽  
Millimetre Waves ◽  
Radio Over Fibre

AbstractsFuture 5 G networks can enhance their wireless capacity and speed by effectively using high-frequency millimetre waves. Radio over fibres (RoF) is the promising technology to deliver millimetre waves over optical fibres as it integrates radio domain with wireless domain. The current study employed cost-effective non-return to zero scheme to encode 10 Gbps – 60 GHz data and wavelength division multiplexing scheme to transmit four channels over 60 km optical fibre link.

scholarly journals High-Speed Millimeter-Wave Mobile Experimentation on Software-Defined Radios

2021 ◽  
Vol 24 (4) ◽  
pp. 39-42
Author(s):  
Jesus O. Lacruz ◽  
Dolores Garcia ◽  
Pablo Jimenez ◽  
Joan Palacios ◽  
Joerg Widmer
Keyword(s):  
Signal Processing ◽  
Millimeter Wave ◽  
Mobile Networks ◽  
High Speed ◽  
Ease Of Use ◽  
Time Signal ◽  
60 Ghz ◽  
Very High Frequency ◽  
Open Platform ◽  
Very High

Millimeter-wave (mm-Wave) communications have become an integral part of WLAN standards and 5G mobile networks and, as application data rate requirements increase, more and more traffic will move to these very high frequency bands. Although there is an ample choice of powerful experimental platforms for sub-6 GHz research, building mm-Wave systems is much more difficult due to the very high hardware requirements. To address the lack of suitable experimentation platforms, we propose mm-FLEX, a flexible and modular open platform with real-time signal processing capabilities that supports a bandwidth of 2 GHz and is compatible with current mm-Wave standards. The platform is built around a fast FPGA processor and a 60 GHz phased antenna array at front-end that can be reconfigured at nanosecond timescales. Together with its ease of use, this turns the platform into a unique tool for research on beam training in highly mobile scenarios and full-bandwidth mm-Wave signal processing.

scholarly journals Digitally-Compensated Wideband 60 GHz Test-Bed for Power Amplifier Predistortion Experiments

Sensors ◽  
2021 ◽  
Vol 21 (4) ◽  
pp. 1473
Author(s):  
Martin Pospíšil ◽  
Roman Maršálek ◽  
Tomáš Götthans ◽  
Tomáš Urbanec
Keyword(s):  
Millimeter Wave ◽  
Power Amplifier ◽  
Communication Systems ◽  
High Speed ◽  
Direct Conversion ◽  
Digital Predistortion ◽  
60 Ghz ◽  
Test Bed ◽  
Front End ◽  
Predistortion Linearization

Millimeter waves will play an important role in communication systems in the near future. On the one hand, the bandwidths available at millimeter-wave frequencies allow for elevated data rates, but on the other hand, the wide bandwidth accentuates the effects of wireless front-end impairments on transmitted waveforms and makes their compensation more difficult. Research into front-end impairment compensation in millimeter-wave frequency bands is currently being carried out, mainly using expensive laboratory setups consisting of universal signal generators, spectral analyzers and high-speed oscilloscopes. This paper presents a detailed description of an in-house built MATLAB-controlled 60 GHz measurement test-bed developed using relatively inexpensive hardware components that are available on the market and equipped with digital compensation for the most critical front-end impairments, including the digital predistortion of the power amplifier. It also demonstrates the potential of digital predistortion linearization on two distinct 60 GHz power amplifiers: one integrated in a direct-conversion transceiver and an external one with 24 dBm output power.

DESIGN AND ANALYSIS OF A 60 GHZ MILLIMETER WAVE ANTENNA

2016 ◽  
Vol 78 (4-3) ◽  
Author(s):  
Sana Ullah ◽  
Sadiq Ullah ◽  
Shahbaz Khan
Keyword(s):  
Millimeter Wave ◽  
Patch Antenna ◽  
Communication Systems ◽  
High Speed ◽  
Ground Plane ◽  
Wave Band ◽  
60 Ghz ◽  
Wave Antenna ◽  
Millimeter Wave Band ◽  
Millimeter Wave Antenna

In this paper an inset feed 60 GHz millimeter wave microstrip patch antenna is proposed for future high speed wireless communication systems. The performance of a conventional 60 GHz patch antenna compared with metamaterial-based 60 GHz antennas. The later employs three types (mushroom, cross and hexagonal) of Electromagnetic Bandgap (EBG) surfaces as a ground planes. The millimeter wave antenna employing the cross-shaped EBG give improved gain as compared to the rest of the antenna models. The 60 GHz antenna based on the mushroom type EBG present better efficiency due to the surface suppression by the ground plane. The proposed antennas can be used in future high speed wireless applications. Due to the very small size these antennas are suitable for medical implants operating in the unlicensed millimeter wave band.

scholarly journals Towards 5G: A Photonic Based Millimeter Wave Signal Generation for Applying in 5G Access Fronthaul

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
S. E. Alavi ◽  
M. R. K. Soltanian ◽  
I. S. Amiri ◽  
M. Khalily ◽  
A. S. M. Supa’at ◽  
...  
Keyword(s):  
Millimeter Wave ◽  
Data Transmission ◽  
Orthogonal Frequency Division Multiplexing ◽  
High Speed ◽  
Small Cells ◽  
Total System ◽  
60 Ghz ◽  
Wave Signal ◽  
Rf Signals ◽  
5 Ghz

Abstract 5G communications require a multi Gb/s data transmission in its small cells. For this purpose millimeter wave (mm-wave) RF signals are the best solutions to be utilized for high speed data transmission. Generation of these high frequency RF signals is challenging in electrical domain therefore photonic generation of these signals is more studied. In this work, a photonic based simple and robust method for generating millimeter waves applicable in 5G access fronthaul is presented. Besides generating of the mm-wave signal in the 60 GHz frequency band the radio over fiber (RoF) system for transmission of orthogonal frequency division multiplexing (OFDM) with 5 GHz bandwidth is presented. For the purpose of wireless transmission for 5G application the required antenna is designed and developed. The total system performance in one small cell was studied and the error vector magnitude (EVM) of the system was evaluated.

scholarly journals Review on Millimeter Wave Antennas- Potential Candidate for 5G Enabled Applications

2016 ◽  
Vol 5 (3) ◽  
pp. 98 ◽  
Author(s):  
M. A. Matin
Keyword(s):  
Millimeter Wave ◽  
High Speed ◽  
High Gain ◽  
Potential Candidate ◽  
60 Ghz ◽  
Communication Services ◽  
Low Profile ◽  
Compact Size ◽  
Millimeter Wave Antenna ◽  
On Chip

The millimeter wave (mmWave) band is considered as the potential candidate for high speed communication services in 5G networks due to its huge bandwidth. Moreover, mmWave frequencies lead to miniaturization of RF front end including antennas. In this article, we provide an overview of recent research achievements of millimeter-wave antenna design along with the design considerations for compact antennas and antennas in package/on chip, mostly in the 60 GHz band is described along with their inherent benefits and challenges. A comparative analysis of various designs is also presented. The antennas with wide bandwidth, high-gain, compact size and low profile with easiness of integration in-package or on-chip with other components are required for 5G enabled applications. 

scholarly journals Channel Impulse Response at 60 GHz and Impact of Electrical Parameters Properties on Ray Tracing Validations

Electronics ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 393
Author(s):  
Huthaifa Obeidat ◽  
Atta Ullah ◽  
Ali AlAbdullah ◽  
Waqas Manan ◽  
Omar Obeidat ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Ray Tracing ◽  
Impulse Response ◽  
Line Of Sight ◽  
Indoor Propagation ◽  
60 Ghz ◽  
Environment Design ◽  
Electrical Parameters ◽  
Concrete Walls ◽  
Properties Of Materials

This paper outlines a study of the effect of changing the electrical properties of materials when applied in the Wireless InSite (WI) ray-tracing software. The study was performed at 60 GHz in an indoor propagation environment and supported by Line of Sight (LoS) and Non-LoS measurements data. The study also investigates other factors that may affect the WI sensitivity, including antenna dimensions, antenna pattern, and accuracy of the environment design. In the experiment, single and double reflections from concrete walls and wooden doors are analysed. Experimental results were compared to those obtained from simulation using the WI. It was found that materials selected from the literature should be similar to those of the environment under study in order to have accurate results. WI was found to have an acceptable performance provided certain conditions are met.

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