A novel dual-slope mm-Wave channel model based on 3D ray-tracing in urban environments

Chang, Y.B.; Baek, Seungjae; Hur, Sooyoung; Mok, Youngjoong; Lee, YoungJu

doi:10.1109/pimrc.2014.7136164

Cited by 29 publications

(26 citation statements)

References 8 publications

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“…The relatively small mm-wave propagation environment allows easy and fast RT prediction, thus overcoming its traditional drawback: high computation time. Moreover, due to its accuracy and versatility RT can be used to derive simpler path-loss models [61] [62] or to directly perform multidimensional channel characterization, often in combination with measurements [34], [63]- [65]. Since RT models by definition simulate multipath propagation, they can be used to evaluate and/or compare the performance of MIMO solutions (e.g.…”

Section: A Deterministic and Semi-deterministic Modelsmentioning

confidence: 99%

“…Instead of an extensive measurement campaign, ray tracing simulations in downtown Ottawa have been used recently to derive a dual-slope path loss model for 28 GHz outdoor links [61]. This dual-slope characteristic is probably related to the lower degree of through-wall penetration and DMC of mm-wave frequencies with respect to UHF.…”

Section: B Other Propagation and Channel Modelsmentioning

confidence: 99%

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Millimeter-Wave Propagation: Characterization and modeling toward fifth-generation systems. [Wireless Corner]

Salous

Degli-Esposti²,

Fuschini

et al. 2016

IEEE Antennas Propag. Mag.

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Abstract-The World Radiocommunications Conference WRC15 identified a number of frequency bands between 24-86 GHz as candidate frequencies for future cellular networks. In this paper an extensive review of propagation characteristics and challenges related to the use of millimetre wave in future wireless systems is presented. Reference to existing path loss models including atmospheric and material attenuation in recommendations of the International Telecommunication Union is given and the need for new multidimensional models and measurements is identified. A description of state of the art mm wave channel sounders for single and multiple antenna measurements is followed by a discussion of the most recent deterministic, semi-deterministic and stochastic propagation and channel models. Finally, standardization issues are outlined with recommendations for future research.

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Section: A Deterministic and Semi-deterministic Modelsmentioning

confidence: 99%

Section: B Other Propagation and Channel Modelsmentioning

confidence: 99%

Millimeter-Wave Propagation: Characterization and modeling toward fifth-generation systems. [Wireless Corner]

Salous

Degli-Esposti²,

Fuschini

et al. 2016

IEEE Antennas Propag. Mag.

Self Cite

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“…Direct use of the collected distance-total power pair (d, PL(d)) in the ray-tracing simulation gives bias from the different number of samples over distance because the number of samples with longer distance is greater than shorter distance. To solve the problem, we use the local mean path loss [8]. From the distance-local mean path loss pair (d a , PL a ), we calculate PLE n which minimizes the least square error [17].…”

Section: B Path Lossmentioning

confidence: 99%

“…In NLoS case, we also calculate dual-slope path loss equation to reduce the root mean square (RMS) error bewteen the local mean path loss and path loss equation [8]. In the dual-slope path loss, two different linear path loss equations are used.…”

Section: B Path Lossmentioning

confidence: 99%

“…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. They also proposed a dual-slope path loss model which considerably reduces root mean square (RMS) error in NLoS.…”

Section: Introductionmentioning

confidence: 99%

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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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Millimeter‐Wave Channels

et al. 2021

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This article provides an overview of measurements and models of millimeter‐wave (mmWave) propagation channels. After a review of the frequency dependence of propagation phenomena and the definition of parameters of interest, we then discuss the different methods for measuring mmWave channels both indoors and outdoors. Then follows an overview of the key measurement results, surveying again the literature of indoor channels, outdoor channels, and the impact of moving people. A survey of different types of channel models, including 3GPP type, geometry‐based stochastic channel models, and map‐based models elucidates the aspects of those models that are particularly relevant for mmWave frequencies. A discussion of the interaction of channels and mmWave systems and an outlook and discussion of future research topics round off this article.

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A novel dual-slope mm-Wave channel model based on 3D ray-tracing in urban environments

Cited by 29 publications

References 8 publications

Millimeter-Wave Propagation: Characterization and modeling toward fifth-generation systems. [Wireless Corner]

Millimeter-Wave Propagation: Characterization and modeling toward fifth-generation systems. [Wireless Corner]

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

Millimeter‐Wave Channels

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