Recent Trends in Millimeter Wave Communication

Chikhale, Devidas V.; Deosarkar, S. B.

doi:10.2991/iccasp-16.2017.84

Cited by 2 publications

(3 citation statements)

References 6 publications

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“…Short wavelength (i.e. high frequencies) of mmWave signals make the reflecting material to seem relatively rougher, which yield greater diffusion of the signal and less specular or direct reflection [132]. wavelengths [16], [31].…”

Section: F Radio Channel Propagation Mechanismsmentioning

confidence: 99%

“…wavelengths [16], [31]. Thus, diffuse reflections translate into less received transmission power than with specular reflections [16], [31], [130]- [132]. That is, while diffraction contributes to the received power for sub-6 GHz communication channels, its contribution is negligible in wireless communication channels operating in the mmWave frequency bands [16], [131].…”

Section: F Radio Channel Propagation Mechanismsmentioning

confidence: 99%

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A Comprehensive Survey on Millimeter Wave Communications for Fifth-Generation Wireless Networks: Feasibility and Challenges

2020

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Fifth-generation (5G) cellular networks will almost certainly operate in the high-bandwidth, underutilized millimeter-wave (mmWave) frequency spectrum, which offers the potentiality of highcapacity wireless transmission of multi-gigabit-per-second (Gbps) data rates. Despite the enormous available bandwidth potential, mmWave signal transmissions suffer from fundamental technical challenges like severe path loss, sensitivity to blockage, directivity, and narrow beamwidth, due to its short wavelengths. To effectively support system design and deployment, accurate channel modeling comprising several 5G technologies and scenarios is essential. This survey provides a comprehensive overview of several emerging technologies for 5G systems, such as massive multiple-input multiple-output (MIMO) technologies, multiple access technologies, hybrid analog-digital precoding and combining, non-orthogonal multiple access (NOMA), cell-free massive MIMO, and simultaneous wireless information and power transfer (SWIPT) technologies. These technologies induce distinct propagation characteristics and establish specific requirements on 5G channel modeling. To tackle these challenges, we first provide a survey of existing solutions and standards and discuss the radio-frequency (RF) spectrum and regulatory issues for mmWave communications. Second, we compared existing wireless communication techniques like sub-6-GHz WiFi and sub-6 GHz 4G LTE over mmWave communications which come with benefits comprising narrow beam, high signal quality, large capacity data transmission, and strong detection potential. Third, we describe the fundamental propagation characteristics of the mmWave band and survey the existing channel models for mmWave communications. Fourth, we track evolution and advancements in hybrid beamforming for massive MIMO systems in terms of system models of hybrid precoding architectures, hybrid analog and digital precoding/combining matrices, with the potential antenna configuration scenarios and mmWave channel estimation (CE) techniques. Fifth, we extend the scope of the discussion by including multiple access technologies for mmWave systems such as non-orthogonal multiple access (NOMA) and space-division multiple access (SDMA), with limited RF chains at the base station. Lastly, we explore the integration of SWIPT in mmWave massive MIMO systems, with limited RF chains, to realize spectrally and energy-efficient communications. INDEX TERMS Millimeter wave communications, propagation, channel measurements, channel models, MIMO, hybrid precoding, non-orthogonal multiple access (NOMA), multiple access techniques, simultaneous wireless information and power transfer (SWIPT), RF energy harvesting. NOMENCLATURE 2D Two-dimensional. 3D Three-dimensional The associate editor coordinating the review of this manuscript and approving it for publication was Jiayi Zhang .

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Section: F Radio Channel Propagation Mechanismsmentioning

confidence: 99%

Section: F Radio Channel Propagation Mechanismsmentioning

confidence: 99%

A Comprehensive Survey on Millimeter Wave Communications for Fifth-Generation Wireless Networks: Feasibility and Challenges

2020

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“…To minimize additional deployment costs, cellular operators are exploring methods to deploy smaller, denser cells for higher capacity, such as LTE picocells on lampposts or Wi-Fi hotspots that complement existing LTE macrocells. [7][8][9] The development of the millimeter-wave range is a promising direction for the developed high-speed mobile broadband radio access systems. The use of narrow beams in the millimeterwave bands can significantly reduce the interference that is inherent in these frequencies.…”

Section: Introductionmentioning

confidence: 99%

Investigation of a Millimeter-Wave Radio Link Characteristics of Ieee 802.11AD Standard in Urban Areas

Kravchuk

Afanasieva

Kravchuk

2021

ITS

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Background. The explosive growth in the use of mobile broadband is significantly increasing the bandwidth requirements. Millimeter-wave spectrum is necessary for 5G networks to achieve data transfer rates of the order of Gb/s, in particular, for the provision of 3D video services, and the use radio modules for millimeter-wave frequencies as picocells in the streets will expand the capabilities of existing cellular networks and provide an increase in bandwidth. Therefore, the study of the characteristics of this spectrum is an urgent task today. Objective. The purpose of the paper is to present the results of studying the characteristics of a millimeter-wave radio link to ensure high-speed user access to IP data transmission networks and the possibility of using the IEEE 802.11ad standard in open areas. Methods. Structural and functional methods of constructing a millimeter-wave wireless network in urban areas based on IEEE 802.11ad standard hardware are investigated. Results. The studies were carried out using a test bench with a point-to-point topology deployed in an urban environment (Kiev) with the line of sight without significant obstacles. The studies tested the possibility of using for millimeter-wave hardware technologies of the IEEE 802.11ad standard, which is used indoors, for applications in urban areas. The use of a narrow beam antenna based on an antenna array allows adaptive control of the radiation pattern to bypass small obstacles blocking direct transmission, which allows reducing interference and receive/transmit a signal. Conclusions. Experimental testing of the hardware capabilities of the IEEE 802.11ad standard has been carried out. Scenarios for constructing a millimeter-wave radio link under various weather conditions have been worked out. Keywords: millimeter-wave; bandwidth; IEEE 802.11ad standard; 5G networks

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Recent Trends in Millimeter Wave Communication

Cited by 2 publications

References 6 publications

A Comprehensive Survey on Millimeter Wave Communications for Fifth-Generation Wireless Networks: Feasibility and Challenges

A Comprehensive Survey on Millimeter Wave Communications for Fifth-Generation Wireless Networks: Feasibility and Challenges

Investigation of a Millimeter-Wave Radio Link Characteristics of Ieee 802.11AD Standard in Urban Areas

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