New Empirical Path Loss Model for 28 GHz and 38 GHz Millimeter Wave in Indoor Urban under Various Conditions

Nossire, Zyad; Gupta, Navarun; Almazaydeh, Laiali; Xiong, Xingguo

doi:10.3390/app8112122

Cited by 10 publications

(10 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Starting from the COST-Hata model, the TYM model [23] was created, which is already indoor applicable, the results are consistent with the measurements can be obtained for the 38 GHz band. The COST-Hata model served as a basic idea for constructing the TYM model.…”

Section: Indoor Propagation Modelssupporting

confidence: 62%

“…where FSPL(f,d0) is the outdoor attenuation at the reference distance (d0 is 1 meter) at the given frequency f measured in GHz, n is the path loss factor (PLE) and Xσ CI is a zero-valued Gaussian random variable with σ standard deviation. The measured PLE [23] coefficients found in the literature are largely the same in the ITU model of indoor signal propagation with distance-based loss coefficients. A semi-outdoor, semiindoor measurement can be found in the literature where the measured PLE is double of the ITU model, however, a high value for standard deviation was measured here [24].…”

Section: B Close-in Free Space Reference Distance Path Loss Modelmentioning

confidence: 69%

“…One of the most common relationships describing outdoor propagation is the Okumura model [23], in the following form:…”

Section: Outdoor Propagation Modelsmentioning

confidence: 99%

See 2 more Smart Citations

Improved Model for Indoor Propagation Loss in the 5G FR2 Frequency Band

Makara¹,

Csurgai-Horváth²

2021

Infocommunications journal

View full text Add to dashboard Cite

One of the latest developments today is the 5G, or 5th generation mobile network. In addition to a number of innovations, the new system also includes millimeter-wavelength frequency ranges denoted with FR2, that formerly not applied for these specific purposes. Proper management of the transmitter and receiver antenna beams is required for efficient communication in this frequency range. For future use, the simplest implementation way is electronically shaping the antenna beams by an algorithm to orient the antennas in the best possible direction. The prerequisites for these algorithms are appropriate propagation models, which are currently lacking, and those that publicly available are not accurate enough for practical use.

show abstract

Section: Indoor Propagation Modelssupporting

confidence: 62%

Section: B Close-in Free Space Reference Distance Path Loss Modelmentioning

confidence: 69%

See 1 more Smart Citation

Improved Model for Indoor Propagation Loss in the 5G FR2 Frequency Band

Makara¹,

Csurgai-Horváth²

2021

Infocommunications journal

View full text Add to dashboard Cite

show abstract

“…The free space path loss (FSL) is the attenuation of signal strength between two isotropic radiators 1 in free space, formulated as a power ratio [102]. That is, the loss between two isotropic radiators unaffected by the Earth is termed the FSL and can be determined as follows.…”

Section: A Free-space Lossmentioning

confidence: 99%

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

2020

View full text Add to dashboard Cite

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 .

show abstract

“…This situation indicates an increase in speed to be faster than the previous mobile communications technology [4]. The increase in data rate is currently in line with the rapid growth of communication devices and the increase of data traffic [5,6,7].…”

Section: Introductionmentioning

confidence: 97%

Humidity Effect to 5g Performances Under Palembang Channel Model at 28 GHZ

Alfaresi

Nawawi

Malik

et al. 2020

Sinergi

View full text Add to dashboard Cite

The telecommunication has a tremendous improvement in terms of data rates and bandwidth requiring sufficient frequency allocation and wideband spectrum availability. The millimeter-wave frequency band is one of the solution to these requirements, however communications in this band is facing new challenges on the climate effect to the channel propagation In this paper, we propose a 5G channel model considering the effect of humidity based on the characteristic of the natural environment of Palembang city. The channel model is represented by power levels and delay called a Power Delay Profile (PDP and is derived based on a series of computer simulations using parameters of nature in Palembang. The 5G channel model is important to further derive the outage performance to be used as the theoretical performance of 5G in Palembang since the the Shannon Channel Capacity Theorem is involved in the derivation. We conduct a series of computer simulations to evaluate the validity of the proposed channel model and its characteristics. We found that humidity affect to the performances, where high humidity makes the performances of outage and BER slightly worse, although the effect may be ignored for some applications. The results of this paper are expected to be the references for the development and implementation of 5G Networks especially at the mm-Wave band in Palembang.

show abstract

New Empirical Path Loss Model for 28 GHz and 38 GHz Millimeter Wave in Indoor Urban under Various Conditions

Cited by 10 publications

References 24 publications

Improved Model for Indoor Propagation Loss in the 5G FR2 Frequency Band

Improved Model for Indoor Propagation Loss in the 5G FR2 Frequency Band

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

Humidity Effect to 5g Performances Under Palembang Channel Model at 28 GHZ

Contact Info

Product

Resources

About