Comparison Analysis of Outdoor Channel Characteristics at 28 GHz and 2 GHz Using 3D Ray-Tracing Technique

Baek, Seungjae; Chang, Y.B.; Kim, Hyun‐Jin; Agiwal, Anil

doi:10.1109/vtcfall.2014.6965910

Cited by 9 publications

(4 citation statements)

References 9 publications

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“…They are used to complement timeconsuming and expensive measurement campaigns and to investigate mmW propagation, coverage and system performance [3]- [5]. The relative importance of different propagation mechanisms (reflection, diffraction, scattering, etc) was assessed by [6]- [7] at frequencies 2.4, 5.8 and 28.0 GHz,.and in macro-cell situations.…”

Section: Introductionmentioning

confidence: 99%

Analysis of outdoor propagation and multi-cell coverage from ray-based simulations in sub-6GHz and mmwave bands

Corre¹,

Tenoux²,

Stephan³

et al. 2016

2016 10th European Conference on Antennas and Propagation (EuCAP)

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This paper analyses the outdoor small-cell millimeter-wave (mmW) propagation using ray-based simulation tools. The main characteristics of the wireless channel, i.e. pathloss, delay and angular spreads, are characterized through various small-cell scenarios, and by comparison between several frequency bands. The 2.4 GHz and 5 GHz bands represent the traditional sub-6GHz frequencies in public radio-communication networks, while 28 GHz and 60 GHz stand for the mmW 5G candidate frequencies. A first analysis compares the downlink Signal-to-Noise Ratio (SNR) in an urban small-cell network, showing how severely the coverage beyond building or vegetation blockage is degraded at mmW. Then, the shadowing and channel scattering created by a small house is studied; the delay and angle spreads behind the house are divided by respectively 5.8 and 2.8 when going from 5 GHz to 60 GHz. Finally, the paper makes recommendations for representation of small objects, trees in particular, to achieve accurate channel or coverage simulations.Index Terms -millimeter-wave propagation, ray-based modeling, shadowing, scattering, 3D geographical map data, 5G, outdoor small-cell.I.

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Section: Introductionmentioning

confidence: 99%

Analysis of outdoor propagation and multi-cell coverage from ray-based simulations in sub-6GHz and mmwave bands

Corre¹,

Tenoux²,

Stephan³

et al. 2016

2016 10th European Conference on Antennas and Propagation (EuCAP)

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“…In [7], we compared received powers between 28 GHz and 2 GHz in LoS and NLoS scenarios in Manhattan-like grid topology and observed additional shadowing about 10 to 25 dB at 28 GHz. Chang et al [8] provided channel model results such as path loss, shadow fading, delay spread and angle spread at 28 GHz.…”

Section: Introductionmentioning

confidence: 99%

“…They also proposed a dual-slope path loss model which considerably reduces root mean square (RMS) error in NLoS. These papers [7][8] focused on traditional 2D channel model in which 2D distance is used in the modeling. The simplification of 3-dimensional geographical topology to 2-dimension has been valid since adoption by standardization bodies such as 3GPP [9], ITU [10], WINNER [11].…”

Section: Introductionmentioning

confidence: 99%

3-Dimensional Large-Scale Channel Model for Urban Environments in mmWave Frequency

Baek

Chang

Hur

et al. 2015

2015 IEEE International Conference on Communication Workshop (ICCW)

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From the results of the ray-tracing simulation of 28 GHz frequency band over downtown of Ottawa and New York University campus, we propose 3D large-scale channel models for urban city which are applicable to a mmWave version of 3D spatial channel model. Due to the change of geographical topology dimension from 2D to 3D, the height information of the transmitter should be reflected to the parameters of the channel model such as line-of-sight probability, Ricean K factor, path loss and shadow fading accordingly. In the simulation results, the line-of-sight probability depends on the height of the transmitter compared to the 2D model. The dual-slope path loss model is still appropriate in 3D channel model. We also propose the linear standard deviation function of the shadow fading, which shows a large standard deviation and an increasing trend with the distance.

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“…Also, the conjectured idea of taking advantages of the enabling phenomena to design viable indoor wireless systems at those high frequency bands was verified. It was found that such a comparison study has been addressed in ray tracing studies, but never verified experimentally [6], therefore, the results reported in this thesis are considered to be a worthwhile contribution in the field.…”

Section: Thesis Contributionsmentioning

confidence: 96%

A Radio-Propagation-Measurement-Based Study of the Capacity of Multi-User Distributed-MIMO Indoor Channels at 18 and 28 GHz

Alkadamani¹

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This thesis had the objective of determining whether indoor SHF wireless systems can provide the same or greater system capacities as current 2 GHz systems. In the interest of avoiding obstruction losses, the focus was on the use of directive antennas at frequencies above 2 GHz to receive radio signals from reflectors and scatterers that could be stronger than those received over direct Tx-to-Rx antenna paths. Models for indirect path transmission loss, spatial variations, shadowing, and temporal fading were derived from propagation measurements conducted in the 2-30 GHz bands.As a final step, models derived from the propagation measurements were used in multi-user conventional and distributed MIMO system capacity simulations. It was shown that with currently achievable transmit powers and antenna gains and beamwidths, narrow band systems at 18 and 28 GHz can be designed to offer the same or greater capacity as those operating in the 2 GHz band. i

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Comparison Analysis of Outdoor Channel Characteristics at 28 GHz and 2 GHz Using 3D Ray-Tracing Technique

Cited by 9 publications

References 9 publications

Analysis of outdoor propagation and multi-cell coverage from ray-based simulations in sub-6GHz and mmwave bands

Analysis of outdoor propagation and multi-cell coverage from ray-based simulations in sub-6GHz and mmwave bands

3-Dimensional Large-Scale Channel Model for Urban Environments in mmWave Frequency

A Radio-Propagation-Measurement-Based Study of the Capacity of Multi-User Distributed-MIMO Indoor Channels at 18 and 28 GHz

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